cmd/go: `-cover` flag is not reported by `go version -m` [1.22 backport]

[gopherbot]

@Jorropo requested issue #67366 to be considered for backport to the next 1.22 minor release.

@gopherbot please open backport issues

[gopherbot]

Change https://go.dev/cl/587316 mentions this issue: cmd/go: add -cover flag to report by go version -m

[matloob]

@Jorropo could you say a little about why this should be backported? It's a pretty simple change, but the bug it's solving also doesn't seem at first glance to be significant.

[matloob]

I'm not sure this meets the criteria for a backport. If it affects more users or doesn't have a workaround we might be able to reconsider.

I'll close for now: feel free to reopen if you want to continue the discussion.

[kolyshkin]

Shouldn't this be closed this as not planned instead?