git-squash-branch: handle empty squashes and dirty trees

git-squash-branch: handle empty squashes

Error out of the current tree is dirty (previously the dirty
content would be incorporated silently into the newly
squashed branch!).

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=294744

[Sam Clegg, 2015-04-09 19:04:41]

sbc@chromium.org changed reviewers:
+ iannucci@chromium.org

[iannucci, 2015-04-09 19:07:29]

lgtm. Does it need a doc update? Don't think so, but just asking in case you
think it does.

[Sam Clegg, 2015-04-09 19:08:24]

On 2015/04/09 19:07:29, iannucci wrote:
> lgtm. Does it need a doc update? Don't think so, but just asking in case you
> think it does.

I don't think so.  Really just a bug fix I think.

[iannucci, 2015-04-09 19:10:29]

On 2015/04/09 19:08:24, Sam Clegg wrote:
> On 2015/04/09 19:07:29, iannucci wrote:
> > lgtm. Does it need a doc update? Don't think so, but just asking in case you
> > think it does.
> 
> I don't think so.  Really just a bug fix I think.

yup I think you're right.

[Sam Clegg, 2015-04-09 19:26:06]

The CQ bit was checked by sbc@chromium.org

[commit-bot: I haz the power, 2015-04-09 19:26:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1064933004/1

[commit-bot: I haz the power, 2015-04-09 19:29:43]

Committed patchset #1 (id:1) as
http://src.chromium.org/viewvc/chrome?view=rev&revision=294744