all: fix a bunch of misspellings

Change-Id: I94cebca86706e072fbe3be782d3edbe0e22b9432
GitHub-Last-Rev: 8e15a40545704fb21b41a8768079f2da19341ef3
GitHub-Pull-Request: golang/go#28067
Reviewed-on: https://go-review.googlesource.com/c/140437
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

src/archive/zip/writer.go

@@ -178,7 +178,7 @@ func (w *Writer) Close() error {
 			return err
 		}
 
-		// store max values in the regular end record to signal that
+		// store max values in the regular end record to signal
 		// that the zip64 values should be used instead
 		records = uint16max
 		size = uint32max

src/cmd/asm/internal/asm/testdata/386enc.s

@@ -18,7 +18,7 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$0
 	MOVL -2147483648(AX), AX // 8b8000000080
 	ADDL 2147483648(AX), AX  // 038000000080
 	ADDL -2147483648(AX), AX // 038000000080
-	// Make sure MOV CR/DR continues to work after changing it's movtabs.
+	// Make sure MOV CR/DR continues to work after changing its movtabs.
 	MOVL CR0, AX // 0f20c0
 	MOVL CR0, DX // 0f20c2
 	MOVL CR4, DI // 0f20e7

src/cmd/asm/internal/asm/testdata/amd64enc_extra.s

@@ -302,7 +302,7 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$0
 	// Check that LEAL is permitted to use overflowing offset.
 	LEAL 2400959708(BP)(R10*1), BP // 428dac15dcbc1b8f
 	LEAL 3395469782(AX)(R10*1), AX // 428d8410d6c162ca
-	// Make sure MOV CR/DR continues to work after changing it's movtabs.
+	// Make sure MOV CR/DR continues to work after changing its movtabs.
 	MOVQ CR0, AX // 0f20c0
 	MOVQ CR0, DX // 0f20c2
 	MOVQ CR4, DI // 0f20e7

src/cmd/compile/internal/gc/esc.go

@@ -946,7 +946,8 @@ opSwitch:
 	case OCALLMETH, OCALLFUNC, OCALLINTER:
 		e.esccall(n, parent)
 
-		// esccall already done on n.Rlist.First(). tie it's Retval to n.List
+		// esccall already done on n.Rlist.First()
+		// tie its Retval to n.List
 	case OAS2FUNC: // x,y = f()
 		rs := e.nodeEscState(n.Rlist.First()).Retval.Slice()
 		where := n

src/cmd/compile/internal/ppc64/ssa.go

@@ -967,7 +967,7 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
 	case ssa.OpPPC64LoweredMove:
 
 		// This will be used when moving more
-		// than 8 bytes.  Moves start with as
+		// than 8 bytes.  Moves start with
 		// as many 8 byte moves as possible, then
 		// 4, 2, or 1 byte(s) as remaining.  This will
 		// work and be efficient for power8 or later.

src/cmd/internal/obj/x86/evex.go

@@ -194,7 +194,7 @@ func newEVEXSuffix() evexSuffix {
 	return evexSuffix{rounding: rcUnset}
 }
 
-// evexSuffixMap maps obj.X86suffix to it's decoded version.
+// evexSuffixMap maps obj.X86suffix to its decoded version.
 // Filled during init().
 var evexSuffixMap [255]evexSuffix
 

src/cmd/link/internal/ld/lib.go

@@ -646,7 +646,7 @@ func (ctxt *Link) loadlib() {
 //
 // These are the symbols that begin with the prefix 'type.' and
 // contain run-time type information used by the runtime and reflect
-// packages. All Go binaries contain these symbols, but only only
+// packages. All Go binaries contain these symbols, but only
 // those programs loaded dynamically in multiple parts need these
 // symbols to have entries in the symbol table.
 func (ctxt *Link) mangleTypeSym() {

src/cmd/vet/vet_test.go

@@ -232,10 +232,10 @@ func TestVetVerbose(t *testing.T) {
 // this function will report an error.
 // Likewise if outStr does not have an error for a line which has a comment,
 // or if the error message does not match the <regexp>.
-// The <regexp> syntax is Perl but its best to stick to egrep.
+// The <regexp> syntax is Perl but it's best to stick to egrep.
 //
 // Sources files are supplied as fullshort slice.
-// It consists of pairs: full path to source file and it's base name.
+// It consists of pairs: full path to source file and its base name.
 func errorCheck(outStr string, wantAuto bool, fullshort ...string) (err error) {
 	var errs []error
 	out := splitOutput(outStr, wantAuto)

src/database/sql/sql_test.go

@@ -597,7 +597,7 @@ func TestPoolExhaustOnCancel(t *testing.T) {
 	state := 0
 
 	// waiter will be called for all queries, including
-	// initial setup queries. The state is only assigned when no
+	// initial setup queries. The state is only assigned when
 	// no queries are made.
 	//
 	// Only allow the first batch of queries to finish once the

src/net/http/transfer.go

@@ -942,7 +942,7 @@ func (b *body) Close() error {
 		// no trailer and closing the connection next.
 		// no point in reading to EOF.
 	case b.doEarlyClose:
-		// Read up to maxPostHandlerReadBytes bytes of the body, looking for
+		// Read up to maxPostHandlerReadBytes bytes of the body, looking
 		// for EOF (and trailers), so we can re-use this connection.
 		if lr, ok := b.src.(*io.LimitedReader); ok && lr.N > maxPostHandlerReadBytes {
 			// There was a declared Content-Length, and we have more bytes remaining

src/runtime/mheap.go

@@ -673,7 +673,7 @@ func (h *mheap) alloc_m(npage uintptr, spanclass spanClass, large bool) *mspan {
 		// TODO(austin): This tends to sweep a large number of
 		// spans in order to find a few completely free spans
 		// (for example, in the garbage benchmark, this sweeps
-		// ~30x the number of pages its trying to allocate).
+		// ~30x the number of pages it's trying to allocate).
 		// If GC kept a bit for whether there were any marks
 		// in a span, we could release these free spans
 		// at the end of GC and eliminate this entirely.

src/runtime/sys_linux_ppc64x.s

@@ -320,7 +320,7 @@ TEXT runtime·_sigtramp(SB),NOSPLIT,$64
 TEXT runtime·cgoSigtramp(SB),NOSPLIT|NOFRAME,$0
 	// The stack unwinder, presumably written in C, may not be able to
 	// handle Go frame correctly. So, this function is NOFRAME, and we
-	// we save/restore LR manually.
+	// save/restore LR manually.
 	MOVD	LR, R10
 
 	// We're coming from C code, initialize essential registers.

test/run.go

@@ -1071,10 +1071,10 @@ func splitOutput(out string, wantAuto bool) []string {
 // this function will report an error.
 // Likewise if outStr does not have an error for a line which has a comment,
 // or if the error message does not match the <regexp>.
-// The <regexp> syntax is Perl but its best to stick to egrep.
+// The <regexp> syntax is Perl but it's best to stick to egrep.
 //
 // Sources files are supplied as fullshort slice.
-// It consists of pairs: full path to source file and it's base name.
+// It consists of pairs: full path to source file and its base name.
 func (t *test) errorCheck(outStr string, wantAuto bool, fullshort ...string) (err error) {
 	defer func() {
 		if *verbose && err != nil {