[gitg] Change camel case var timeZone to gitg style

[Sindhu S <sindhus src gnome org>]

commit 2aaf706e57d609bed0322bcc837462c83bb15052
Author: Sindhu S <sindhu oxf gmail com>
Date:   Tue Apr 23 16:36:40 2013 +0530

    Change camel case var timeZone to gitg style

 libgitg/gitg-commit.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgitg/gitg-commit.vala b/libgitg/gitg-commit.vala
index c2360ea..5cc0e8e 100644
--- a/libgitg/gitg-commit.vala
+++ b/libgitg/gitg-commit.vala
@@ -93,7 +93,7 @@ public class Commit : Ggit.Commit
                }
        }
 
-       private string date_for_display(DateTime dt, TimeZone timeZone)
+       private string date_for_display(DateTime dt, TimeZone time_zone)
        {
                var t = (new DateTime.now_local()).to_unix() - dt.to_unix();
 
@@ -130,7 +130,7 @@ public class Commit : Ggit.Commit
                        return "%d days ago".printf((int)Math.round(t / (3600 * 24)));
                }
 
-               return dt.to_timezone(timeZone).format("%x %X %z");
+               return dt.to_timezone(time_zone).format("%x %X %z");
        }
 
        public string committer_date_for_display