[meld] Fix typo in Git Revert command

[Kai Willadsen <kaiw src gnome org>]

commit 029bc325e15672c8de56cc83a77a5e9396e53df6
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun May 26 08:14:58 2013 +1000

    Fix typo in Git Revert command

 meld/vc/git.py |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/meld/vc/git.py b/meld/vc/git.py
index 403fc1c..b6db114 100644
--- a/meld/vc/git.py
+++ b/meld/vc/git.py
@@ -193,10 +193,10 @@ class Vc(_vc.CachedVc):
         missing = [f for f in files if not os.path.exists(f)]
         if exists:
             command = [self.CMD, 'checkout']
-            runner(command, files, refresh=True, working_dir=self.root)
+            runner(command, exists, refresh=True, working_dir=self.root)
         if missing:
             command = [self.CMD, 'checkout', 'HEAD']
-            runner(command, files, refresh=True, working_dir=self.root)
+            runner(command, missing, refresh=True, working_dir=self.root)
 
     def get_path_for_conflict(self, path, conflict):
         if not path.startswith(self.root + os.path.sep):