D1691: debugdiscovery: drop reference to invalid --branch option

[krbullock (Kevin Bullock)]

krbullock added inline comments.

INLINE COMMENTS

> debugcommands.py:747
>      opts = pycompat.byteskwargs(opts)
> -    remoteurl, branches = hg.parseurl(ui.expandpath(remoteurl),
> -                                      opts.get('branch'))
> +    remoteurl, branches = hg.parseurl(ui.expandpath(remoteurl))
>      remote = hg.peer(repo, opts, remoteurl)

Drop `[-b BRANCH]` from the usage string above too?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1691

To: martinvonz, #hg-reviewers, yuja
Cc: krbullock, mercurial-devel