cmd/go: fix typo in "go help version" output

Change-Id: I38b22786aae3d7a08cf2863ef5d15e476fe30093
GitHub-Last-Rev: 57d07dd1c711029b965afd32e1d8a3c22560276f
GitHub-Pull-Request: golang/go#31711
Reviewed-on: https://go-review.googlesource.com/c/go/+/174086Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>

src/cmd/go/alldocs.go

@@ -1373,7 +1373,7 @@
 // during a directory scan. The -v flag causes it to report unrecognized files.
 //
 // The -m flag causes go version to print each executable's embedded
-// module version information, when available. In the output, the modul
+// module version information, when available. In the output, the module
 // information consists of multiple lines following the version line, each
 // indented by a leading tab character.
 //

src/cmd/go/internal/version/version.go

@@ -34,7 +34,7 @@ By default, go version does not report unrecognized files found
 during a directory scan. The -v flag causes it to report unrecognized files.
 
 The -m flag causes go version to print each executable's embedded
-module version information, when available. In the output, the modul
+module version information, when available. In the output, the module
 information consists of multiple lines following the version line, each
 indented by a leading tab character.