Make tools/submit_try safer

Using proc.wait() in combination with PIPE doesn't seem
to be safe for large patches according to
http://docs.python.org/2/library/subprocess.html.

Moving to proc.communicate().

Signed-off-by: Kévin PETIT <kevin.petit@arm.com>

BUG=skia:
R=djsollen@google.com, borenet@google.com

Author: kevin.petit.arm@gmail.com

Review URL: https://codereview.chromium.org/141023003

git-svn-id: http://skia.googlecode.com/svn/trunk@13113 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed