difftool: use the `git` object instead of subprocess directly
commit7afbc7835b0170be981ed0875f3750a0748af710
authorDavid Aguilar <davvid@gmail.com>
Wed, 12 Aug 2015 23:12:48 +0000 (12 16:12 -0700)
committerDavid Aguilar <davvid@gmail.com>
Wed, 12 Aug 2015 23:14:27 +0000 (12 16:14 -0700)
tree54f8b2b2c7c16b70dca4822cd07bb5f0fe11fc2b
parentb993b268bb1883479a03ef9cdc70b36616b20622
difftool: use the `git` object instead of subprocess directly

Go through our git wrapper object instead of calling subprcess directly.
This ensures that we handle EINTR and makes it consistent.

Signed-off-by: David Aguilar <davvid@gmail.com>
cola/difftool.py