Make gcl and git-cl don't throw when a vim user does :cg

git_cl.py

Index: git_cl.py
diff --git a/git_cl.py b/git_cl.py
index 9e1124c65ea55ec417a941828398c50da7cddfc6..5cf2580e4c785ad74346191087a2c9dee2a3980d 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -842,7 +842,10 @@ def UserEditedLog(starting_text):
       # Msysgit requires the usage of 'env' to be present.
       cmd = 'env ' + cmd
     # shell=True to allow the shell to handle all forms of quotes in $EDITOR.
-    subprocess.check_call(cmd, shell=True)
+    try:
+      subprocess.check_call(cmd, shell=True)
+    except subprocess.CalledProcessError, e:
+      DieWithError('Editor returned %d' % e.returncode)
     fileobj = open(filename)
     text = fileobj.read()
     fileobj.close()