Sort output of "p4 change" in incremental import before further

processing

P4 change outputs the changes sorted for each directory separately. We
want the global ordering on the changes, hence we sort.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Simon Hausmann <simon@lst.de>

contrib/fast-import/git-p4

@@ -1296,7 +1296,7 @@ class P4Sync(Command):
                     changeNum = line.split(" ")[1]
                     changes.append(changeNum)
 
-                changes.reverse()
+                changes.sort()
 
                 if len(self.maxChanges) > 0:
                     changes = changes[0:min(int(self.maxChanges), len(changes))]