--- a/hgext/extdiff.py	Sat May 05 15:12:26 2012 -0500
+++ b/hgext/extdiff.py	Tue May 15 14:37:49 2012 -0500
@@ -66,6 +66,8 @@
 from mercurial import scmutil, scmutil, util, commands, encoding
 import os, shlex, shutil, tempfile, re
 
+testedwith = 'internal'
+
 def snapshot(ui, repo, files, node, tmproot):
     '''snapshot files as of some revision
     if not using snapshot, -I/-X does not work and recursive diff