Fix git-p4 rebase

Signed-off-by: Simon Hausmann <shausman@trolltech.com>
diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index ececc44..50d92c0 100755
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -1320,6 +1320,7 @@
         self.options = [ ]
         self.description = ("Fetches the latest revision from perforce and "
                             + "rebases the current work (branch) against it")
+        self.verbose = False
 
     def run(self, args):
         sync = P4Sync()