diff -r 1d2ca307bf22 -r fe8795dee77d contrib/perf.py
--- a/contrib/perf.py	Mon Sep 23 13:26:11 2013 -0700
+++ b/contrib/perf.py	Fri Sep 20 10:14:59 2013 -0400
@@ -87,7 +87,8 @@
 
 @command('perftags')
 def perftags(ui, repo):
-    import mercurial.changelog, mercurial.manifest
+    import mercurial.changelog
+    import mercurial.manifest
     def t():
         repo.changelog = mercurial.changelog.changelog(repo.sopener)
         repo.manifest = mercurial.manifest.manifest(repo.sopener)