init: make bad --repo-rev settings more clear

If the user passes a bad --repo-rev setting in a new checkout, add a
tip to the error message that their option is probably bad instead of
just saying "unable to resolve".

If the user has already initialized a checkout, we'd display a raw
traceback which would confuse them.  Swallow that and also include
the --repo-rev tip.

Bug: https://crbug.com/gerrit/15610
Change-Id: I5d72513c7b37bf9bb5d19862fcdfaf0d1f44e886
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328820
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>

0 files changed, 0 insertions, 0 deletions