git hyper-blame: Added approx. line number translation.

git_common.py

Index: git_common.py
diff --git a/git_common.py b/git_common.py
index d571f820b7de02bd4bd3814716912d89dffa7f3d..949ba4695e0437f1ef6b9b078a9fca70f27377f5 100644
--- a/git_common.py
+++ b/git_common.py
@@ -374,6 +374,10 @@ def del_config(option, scope='local'):
     pass
 
 
+def diff(oldrev, newrev, *args):
+  return run('diff', oldrev, newrev, *args)

[iannucci, 2016/02/05 00:55:55]

not sure this helper is /entirely/ warranted since it's 1 line and only used in
one place :D

[Matt Giuca, 2016/02/05 02:46:33]

Hmm OK, I wasn't sure of the convention. I assumed any git command used should
have a helper so there is a consistent style for git commands (calling dedicated
functions rather than run()).

But I see lots of direct calls to diff elsewhere. Since diff is actually fairly
well used, let's keep this here and maybe migrate more over in the future.

+
+
 def freeze():
   took_action = False