trychange.py: create patch refs in refs/patches/

trychange.py: create patch refs in refs/patches/

In Git-mode, the previous version of code created a ref in
refs/heads/refs/patches/...  instead of refs/patches/....
This commit fixes the problem.

R=maruel@chromium.org, agable@chromium.org
BUG=362264
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=263439

[agable, 2014-04-11 21:44:59]

LGTM. It would be cleaner to directly commit-tree instead of having the temp
orphan branch, but that's fine.

[nodir, 2014-04-11 23:58:20]

Please lgtm https://codereview.chromium.org/231663005/

https://codereview.chromium.org/233913002/diff/20001/trychange.py
File trychange.py (right):

https://codereview.chromium.org/233913002/diff/20001/trychange.py#newcode514
trychange.py:514: def _PrepareDescriptionAndPatchFiles(description, options,
use_username=True):
This is because of rebase on https://codereview.chromium.org/231663005/

https://codereview.chromium.org/233913002/diff/20001/trychange.py#newcode524
trychange.py:524: use_username: specifies if username must be included in the
patch_filename.
because of rebase

https://codereview.chromium.org/233913002/diff/20001/trychange.py#newcode529
trychange.py:529: patch_basename = '%s.%s' % (Escape(options.user),
patch_basename)
because of rebase

https://codereview.chromium.org/233913002/diff/20001/trychange.py#newcode650
trychange.py:650: patch_filename, description_filename):
because of rebase

[nodir, 2014-04-12 01:12:48]

The CQ bit was checked by nodir@chromium.org

[commit-bot: I haz the power, 2014-04-12 01:13:14]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nodir@chromium.org/233913002/40001

[commit-bot: I haz the power, 2014-04-12 01:15:05]

Change committed as 263439