tree e4943db9c52085041eb88c5ce0ec81df43507c9f
parent 1fc79c21920adfb857568341a1dc72fc3421fa5b
author Aurimas Liutikas <aurimas@google.com> 1450231370 -0800
committer Aurimas Liutikas <aurimas@google.com> 1450400000 +0000

Fix a crash when a brand new file is added.

Checkstyle.py was not handling additions of new files resulting in
a crash. For new files git.modified_lines() returns None. Added code
handles that case.

Bug: 25852971
Change-Id: I91e2b8c92581ec9e89bcbbcd2d274f56c791f3a9
(cherry picked from commit 5b87dbad0cd8b5004c507b33060f2c093d72f98f)