Merge branch 'fix-diff-stats-ui' into 'master'

Fix huge line height for diff files list
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !1826

app/assets/stylesheets/pages/commit.scss

@@ -56,6 +56,7 @@
 
     li {
       padding: 3px 0px;
+      line-height: 20px;
     }
   }
   .new-file {