[meld] Update bzr valid_repo to use root not info

[Kai Willadsen <kaiw src gnome org>]

commit 6231208aeacff54c2772c4bb24b009209fce65ea
Author: Louis des Landes <louis obsidian com au>
Date:   Tue Jun 11 11:10:54 2013 +1000

    Update bzr valid_repo to use root not info
    
    https://bugzilla.gnome.org/show_bug.cgi?id=701972

 meld/vc/bzr.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meld/vc/bzr.py b/meld/vc/bzr.py
index 6cd3802..6f83757 100644
--- a/meld/vc/bzr.py
+++ b/meld/vc/bzr.py
@@ -93,7 +93,7 @@ class Vc(_vc.CachedVc):
         return [self.CMD] + self.CMDARGS + ["resolve"]
 
     def valid_repo(self):
-        if _vc.call([self.CMD, "info"], cwd=self.root):
+        if _vc.call([self.CMD, "root"], cwd=self.root):
             return False
         else:
             return True