cmd/go: fix a typo in module-private help text

Change-Id: Idbdcb78d40cf58d7c878cfeaa4a34ab580fe472f
Reviewed-on: https://go-review.googlesource.com/c/go/+/183626
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

src/cmd/go/alldocs.go

@@ -2767,7 +2767,7 @@
 // 	GOPROXY=proxy.example.com
 // 	GONOPROXY=none
 //
-// This would tell the go comamnd and other tools that modules beginning with
+// This would tell the go command and other tools that modules beginning with
 // a corp.example.com subdomain are private but that the company proxy should
 // be used for downloading both public and private modules, because
 // GONOPROXY has been set to a pattern that won't match any modules,

src/cmd/go/internal/modfetch/fetch.go

@@ -757,7 +757,7 @@ users would configure go using:
 	GOPROXY=proxy.example.com
 	GONOPROXY=none
 
-This would tell the go comamnd and other tools that modules beginning with
+This would tell the go command and other tools that modules beginning with
 a corp.example.com subdomain are private but that the company proxy should
 be used for downloading both public and private modules, because
 GONOPROXY has been set to a pattern that won't match any modules,