cmd/go/internal/modfetch: fix comment that mentions no-longer returned error

In c9211577eb77df9c51f0565f1da7d20ff91d59df @bcmills removed the returned error from
`Lookup`. However, the function docstring still mentions that this can return an error.

So this corrects the docs.

Change-Id: Idca74a200dfdb024e3d7ff6c439c70632cfec11a
GitHub-Last-Rev: 62eaacf70c3886d8aba25b79212c61485a89fde0
GitHub-Pull-Request: golang/go#45822
Reviewed-on: https://go-review.googlesource.com/c/go/+/314572
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>

diff --git a/src/cmd/go/internal/modfetch/repo.go b/src/cmd/go/internal/modfetch/repo.go
index 20469c5432fd76925a2608896bf7b39bbeb44135..0bffa55af6f2ed6c4b12ec8363a8bb4f7f434bc6 100644 (file)
--- a/src/cmd/go/internal/modfetch/repo.go
+++ b/src/cmd/go/internal/modfetch/repo.go
@@ -183,7 +183,8 @@ type lookupCacheKey struct {
 // from its origin, and "noproxy" indicates that the patch should be fetched
 // directly only if GONOPROXY matches the given path.
 //
-// For the distinguished proxy "off", Lookup always returns a non-nil error.
+// For the distinguished proxy "off", Lookup always returns a Repo that returns
+// a non-nil error for every method call.
 //
 // A successful return does not guarantee that the module
 // has any defined versions.