doc: use HTTPS for links

Change-Id: I9d2d25df067ca573589db5ff18296a5ec33866be
Reviewed-on: https://go-review.googlesource.com/118595Reviewed-by: Ian Lance Taylor <iant@golang.org>

doc/code.html

@@ -673,7 +673,7 @@ articles about the Go language and its libraries and tools.
 
 <p>
 For real-time help, ask the helpful gophers in <code>#go-nuts</code> on the
-<a href="http://freenode.net/">Freenode</a> IRC server.
+<a href="https://freenode.net/">Freenode</a> IRC server.
 </p>
 
 <p>

doc/contribute.html

@@ -639,7 +639,7 @@ The existing implementation has poor numerical properties for
 large arguments, so use the McGillicutty algorithm to improve
 accuracy above 1e10.
 
-The algorithm is described at http://wikipedia.org/wiki/McGillicutty_Algorithm
+The algorithm is described at https://wikipedia.org/wiki/McGillicutty_Algorithm
 
 Fixes #159
 </pre>

doc/debugging_with_gdb.html

@@ -47,7 +47,7 @@ In short, the instructions below should be taken only as a guide to how
 to use GDB when it works, not as a guarantee of success.
 
 Besides this overview you might want to consult the
-<a href="http://sourceware.org/gdb/current/onlinedocs/gdb/">GDB manual</a>.
+<a href="https://sourceware.org/gdb/current/onlinedocs/gdb/">GDB manual</a>.
 </p>
 
 <p>

doc/docs.html

@@ -195,7 +195,7 @@ See the <a href="/wiki/Articles">Articles page</a> at the
 
 <img class="gopher" src="/doc/gopher/talks.png"/>
 
-<h3 id="video_tour_of_go"><a href="http://research.swtch.com/gotour">A Video Tour of Go</a></h3>
+<h3 id="video_tour_of_go"><a href="https://research.swtch.com/gotour">A Video Tour of Go</a></h3>
 <p>
 Three things that make Go fast, fun, and productive:
 interfaces, reflection, and concurrency. Builds a toy web crawler to

doc/editors.html

@@ -9,7 +9,7 @@
   This document lists commonly used editor plugins and IDEs from the Go ecosystem
   that make Go development more productive and seamless.
   A comprehensive list of editor support and IDEs for Go development is available at
-  <a href="http://golang.org/wiki/IDEsAndTextEditorPlugins">the wiki</a>.
+  <a href="https://golang.org/wiki/IDEsAndTextEditorPlugins">the wiki</a>.
 </p>
 
 <h2 id="options">Options</h2>

doc/gccgo_contribute.html

@@ -22,7 +22,7 @@ file HACKING</a> in the gofrontend repository.
 You must follow the <a href="/doc/contribute.html#copyright">Go copyright
 rules</a> for all changes to the gccgo frontend and the associated
 libgo library.  Code that is part of GCC rather than gccgo must follow
-the general <a href="http://gcc.gnu.org/contribute.html">GCC
+the general <a href="https://gcc.gnu.org/contribute.html">GCC
 contribution rules</a>.
 </p>
 
@@ -30,9 +30,9 @@ contribution rules</a>.
 
 <p>
 The master sources for the gccgo frontend may be found at
-<a href="http://go.googlesource.com/gofrontend">http://go.googlesource.com/gofrontend</a>.
+<a href="https://go.googlesource.com/gofrontend">https://go.googlesource.com/gofrontend</a>.
 They are mirrored
-at <a href="http://github.com/golang/gofrontend">http://github.com/golang/gofrontend</a>.
+at <a href="https://github.com/golang/gofrontend">https://github.com/golang/gofrontend</a>.
 The master sources are not buildable by themselves, but only in
 conjunction with GCC (in the future, other compilers may be
 supported).  Changes made to the gccgo frontend are also applied to

doc/gccgo_install.html

@@ -9,7 +9,7 @@ the Go language.  The gccgo compiler is a new frontend
 for GCC, the widely used GNU compiler.  Although the
 frontend itself is under a BSD-style license, gccgo is
 normally used as part of GCC and is then covered by
-the <a href="http://www.gnu.org/licenses/gpl.html">GNU General Public
+the <a href="https://www.gnu.org/licenses/gpl.html">GNU General Public
 License</a> (the license covers gccgo itself as part of GCC; it
 does not cover code generated by gccgo).
 </p>
@@ -25,7 +25,7 @@ compiler.
 <p>
 The simplest way to install gccgo is to install a GCC binary release
 built to include Go support.  GCC binary releases are available from
-<a href="http://gcc.gnu.org/install/binaries.html">various
+<a href="https://gcc.gnu.org/install/binaries.html">various
 websites</a> and are typically included as part of GNU/Linux
 distributions.  We expect that most people who build these binaries
 will include Go support.
@@ -79,7 +79,7 @@ If you cannot use a release, or prefer to build gccgo for
 yourself, 
 the gccgo source code is accessible via Subversion.  The
 GCC web site
-has <a href="http://gcc.gnu.org/svn.html">instructions for getting the
+has <a href="https://gcc.gnu.org/svn.html">instructions for getting the
 GCC source code</a>.  The gccgo source code is included.  As a
 convenience, a stable version of the Go support is available in
 a branch of the main GCC code
@@ -101,7 +101,7 @@ gccgo</a>.
 <p>
 Building gccgo is just like building GCC
 with one or two additional options.  See
-the <a href="http://gcc.gnu.org/install/">instructions on the gcc web
+the <a href="https://gcc.gnu.org/install/">instructions on the gcc web
 site</a>.  When you run <code>configure</code>, add the
 option <code>--enable-languages=c,c++,go</code> (along with other
 languages you may want to build).  If you are targeting a 32-bit x86,
@@ -156,7 +156,7 @@ option <code>--with-ld=<var>GOLD_BINARY</var></code>.
 <p>
 A number of prerequisites are required to build GCC, as
 described on
-the <a href="http://gcc.gnu.org/install/prerequisites.html">gcc web
+the <a href="https://gcc.gnu.org/install/prerequisites.html">gcc web
 site</a>.  It is important to install all the prerequisites before
 running the gcc <code>configure</code> script.
 The prerequisite libraries can be conveniently downloaded using the

doc/go1.2.html

@@ -860,13 +860,13 @@ The new build tag <code>netgo</code> (off by default) allows the construction of
 The <a href="/pkg/net/"><code>net</code></a> package adds a new field
 <code>DualStack</code> to the <a href="/pkg/net/#Dialer"><code>Dialer</code></a>
 struct for TCP connection setup using a dual IP stack as described in
-<a href="http://tools.ietf.org/html/rfc6555">RFC 6555</a>.
+<a href="https://tools.ietf.org/html/rfc6555">RFC 6555</a>.
 </li>
 
 <li>
 The <a href="/pkg/net/http/"><code>net/http</code></a> package will no longer
 transmit cookies that are incorrect according to
-<a href="http://tools.ietf.org/html/rfc6265">RFC 6265</a>.
+<a href="https://tools.ietf.org/html/rfc6265">RFC 6265</a>.
 It just logs an error and sends nothing.
 Also,
 the <a href="/pkg/net/http/"><code>net/http</code></a> package's

doc/go1.4.html

@@ -420,7 +420,7 @@ to automate the running of tools to generate source code before compilation.
 For example, it can be used to run the <a href="/cmd/yacc"><code>yacc</code></a>
 compiler-compiler on a <code>.y</code> file to produce the Go source file implementing the grammar,
 or to automate the generation of <code>String</code> methods for typed constants using the new
-<a href="http://godoc.org/golang.org/x/tools/cmd/stringer">stringer</a>
+<a href="https://godoc.org/golang.org/x/tools/cmd/stringer">stringer</a>
 tool in the <code>golang.org/x/tools</code> subrepository.
 </p>
 
@@ -619,9 +619,9 @@ has been created to serve as the location for new developments to support system
 calls on all kernels.
 It has a nicer structure, with three packages that each hold the implementation of
 system calls for one of
-<a href="http://godoc.org/golang.org/x/sys/unix">Unix</a>,
-<a href="http://godoc.org/golang.org/x/sys/windows">Windows</a> and
-<a href="http://godoc.org/golang.org/x/sys/plan9">Plan 9</a>.
+<a href="https://godoc.org/golang.org/x/sys/unix">Unix</a>,
+<a href="https://godoc.org/golang.org/x/sys/windows">Windows</a> and
+<a href="https://godoc.org/golang.org/x/sys/plan9">Plan 9</a>.
 These packages will be curated more generously, accepting all reasonable changes
 that reflect kernel interfaces in those operating systems.
 See the documentation and the article mentioned above for more information.
@@ -670,7 +670,7 @@ The <a href="/pkg/crypto/"><code>crypto</code></a> package now has a
 
 <li>
 The <a href="/pkg/crypto/tls/"><code>crypto/tls</code></a> package
-now supports ALPN as defined in <a href="http://tools.ietf.org/html/rfc7301">RFC 7301</a>.
+now supports ALPN as defined in <a href="https://tools.ietf.org/html/rfc7301">RFC 7301</a>.
 </li>
 
 <li>

doc/go_faq.html

@@ -97,14 +97,14 @@ What's the origin of the mascot?</h3>
 
 <p>
 The mascot and logo were designed by
-<a href="http://reneefrench.blogspot.com">Renée French</a>, who also designed
+<a href="https://reneefrench.blogspot.com">Renée French</a>, who also designed
 <a href="https://9p.io/plan9/glenda.html">Glenda</a>,
 the Plan 9 bunny.
 The <a href="https://blog.golang.org/gopher">gopher</a>
-is derived from one she used for an <a href="http://wfmu.org/">WFMU</a>
+is derived from one she used for an <a href="https://wfmu.org/">WFMU</a>
 T-shirt design some years ago.
 The logo and mascot are covered by the
-<a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0</a>
+<a href="https://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0</a>
 license.
 </p>
 
@@ -1929,7 +1929,7 @@ func main() {
 
 <p>
 Nowadays, most Go programmers use a tool,
-<a href="http://godoc.org/golang.org/x/tools/cmd/goimports">goimports</a>,
+<a href="https://godoc.org/golang.org/x/tools/cmd/goimports">goimports</a>,
 which automatically rewrites a Go source file to have the correct imports,
 eliminating the unused imports issue in practice.
 This program is easily connected to most editors to run automatically when a Go source file is written.
@@ -1968,7 +1968,7 @@ The slowest depend on libraries for which versions of comparable performance
 are not available in Go.
 For instance, <a href="https://go.googlesource.com/exp/+/master/shootout/pidigits.go">pidigits.go</a>
 depends on a multi-precision math package, and the C
-versions, unlike Go's, use <a href="http://gmplib.org/">GMP</a> (which is
+versions, unlike Go's, use <a href="https://gmplib.org/">GMP</a> (which is
 written in optimized assembler).
 Benchmarks that depend on regular expressions
 (<a href="https://go.googlesource.com/exp/+/master/shootout/regex-dna.go">regex-dna.go</a>,

doc/go_spec.html

@@ -69,7 +69,7 @@ language.
 
 <p>
 Source code is Unicode text encoded in
-<a href="http://en.wikipedia.org/wiki/UTF-8">UTF-8</a>. The text is not
+<a href="https://en.wikipedia.org/wiki/UTF-8">UTF-8</a>. The text is not
 canonicalized, so a single accented code point is distinct from the
 same character constructed from combining an accent and a letter;
 those are treated as two code points.  For simplicity, this document
@@ -104,7 +104,7 @@ unicode_digit  = /* a Unicode code point classified as "Number, decimal digit" *
 </pre>
 
 <p>
-In <a href="http://www.unicode.org/versions/Unicode8.0.0/">The Unicode Standard 8.0</a>,
+In <a href="https://www.unicode.org/versions/Unicode8.0.0/">The Unicode Standard 8.0</a>,
 Section 4.5 "General Category" defines a set of character categories.
 Go treats all characters in any of the Letter categories Lu, Ll, Lt, Lm, or Lo
 as Unicode letters, and those in the Number category Nd as Unicode digits.
@@ -793,7 +793,7 @@ rune        alias for int32
 
 <p>
 The value of an <i>n</i>-bit integer is <i>n</i> bits wide and represented using
-<a href="http://en.wikipedia.org/wiki/Two's_complement">two's complement arithmetic</a>.
+<a href="https://en.wikipedia.org/wiki/Two's_complement">two's complement arithmetic</a>.
 </p>
 
 <p>
@@ -3543,7 +3543,7 @@ x = q*y + r  and  |r| &lt; |y|
 
 <p>
 with <code>x / y</code> truncated towards zero
-(<a href="http://en.wikipedia.org/wiki/Modulo_operation">"truncated division"</a>).
+(<a href="https://en.wikipedia.org/wiki/Modulo_operation">"truncated division"</a>).
 </p>
 
 <pre>
@@ -6109,7 +6109,7 @@ package and may be relative to a repository of installed packages.
 <p>
 Implementation restriction: A compiler may restrict ImportPaths to
 non-empty strings using only characters belonging to
-<a href="http://www.unicode.org/versions/Unicode6.3.0/">Unicode's</a>
+<a href="https://www.unicode.org/versions/Unicode6.3.0/">Unicode's</a>
 L, M, N, P, and S general categories (the Graphic characters without
 spaces) and may also exclude the characters
 <code>!"#$%&amp;'()*,:;&lt;=&gt;?[\]^`{|}</code>

doc/install-source.html

@@ -197,7 +197,7 @@ have a <code>git</code> command before proceeding.)
 <p>
 If you do not have a working Git installation,
 follow the instructions on the
-<a href="http://git-scm.com/downloads">Git downloads</a> page.
+<a href="https://git-scm.com/downloads">Git downloads</a> page.
 </p>
 
 <h2 id="ccompiler">(Optional) Install a C compiler</h2>
@@ -388,7 +388,7 @@ You can access the latter commands with
 
 <p>
 The usual community resources such as
-<code>#go-nuts</code> on the <a href="http://freenode.net/">Freenode</a> IRC server
+<code>#go-nuts</code> on the <a href="https://freenode.net/">Freenode</a> IRC server
 and the
 <a href="//groups.google.com/group/golang-nuts">Go Nuts</a>
 mailing list have active developers that can help you with problems

doc/install.html

@@ -57,7 +57,7 @@ If your OS or architecture is not on the list, you may be able to
 <sup>&#8224;</sup>A C compiler is required only if you plan to use
 <a href="/cmd/cgo">cgo</a>.<br/>
 <sup>&#8225;</sup>You only need to install the command line tools for
-<a href="http://developer.apple.com/Xcode/">Xcode</a>. If you have already
+<a href="https://developer.apple.com/Xcode/">Xcode</a>. If you have already
 installed Xcode 4.3+, you can install it from the Components tab of the
 Downloads preferences panel.
 </p>