Extract filenames from diffs better.

Extract filenames from diffs better.

This is a followup to: http://codereview.chromium.org/8059009/

Only add the file once instead of twice (since the diff has --- and +++ lines for each file).
Strip whitespace at the end (git diffs don't include a \t so split('\t') isn't enough).
Remove leading 'a/' from the path, since git diffs have these.

BUG=none
TEST=manual

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=102934

[M-A Ruel, 2011-09-27 15:00:45]

lgtm

http://codereview.chromium.org/8050017/diff/1/trychange.py
File trychange.py (right):

http://codereview.chromium.org/8050017/diff/1/trychange.py#newcode481
trychange.py:481: if diff[i].startswith('--- '):
Maybe time to?

import patch
patchset = (call function yet implemented to split diff)

[commit-bot: I haz the power, 2011-09-27 15:05:11]

CQ is trying tha patch. Follow status at
https://chromium-status.appspot.com/cq/asvitkine@chromium.org/8050017/1

[Alexei Svitkine (slow), 2011-09-27 15:05:13]

http://codereview.chromium.org/8050017/diff/1/trychange.py
File trychange.py (right):

http://codereview.chromium.org/8050017/diff/1/trychange.py#newcode481
trychange.py:481: if diff[i].startswith('--- '):
On 2011/09/27 15:00:45, Marc-Antoine Ruel wrote:
> Maybe time to?
> 
> import patch
> patchset = (call function yet implemented to split diff)

Maybe next time. ;)

[commit-bot: I haz the power, 2011-09-27 15:11:02]

Change committed as 102934