What version of Go are you using (go version)?

Documentation on tip.golang.org (Build version devel +bf80e3b564 Sat Aug 18 18:23:06 2018 +0000)

Does this issue reproduce with the latest release?

Yes (tip).

Issue

The old go help mod fix included this example near the top:

Fix updates go.mod to use canonical version identifiers and
to be semantically consistent. For example, consider this go.mod file:

        module M

        require (
                A v1
                B v1.0.0
                C v1.0.0
                D v1.2.3
                E dev
        )

        exclude D v1.2.3

Much of the content from go help mod fix has migrated to go help go.mod, and the text has been updated and generally improved.

However, even though example above was removed, many sections of the subsequent prose in the current go help go.mod still continue to refer to that now non-existent example, such as:

The update rewrites non-canonical version identifiers to semver form, so A's v1 becomes v1.0.0 and E's dev becomes the pseudo-version for the latest commit on the dev branch, perhaps v0.0.0-20180523231146-b3f5c0f6e5f1.

Side note: I personally think the new example is much better for someone who is new to Go modules (which at this point of course is most people).

@gopherbot, please add labels modules, Documentation.