--- a/mercurial/patch.py	Wed Apr 20 23:30:07 2011 +0200
+++ b/mercurial/patch.py	Wed Apr 20 19:54:57 2011 +0200
@@ -11,7 +11,7 @@
 
 from i18n import _
 from node import hex, nullid, short
-import base85, mdiff, util, diffhelpers, copies, encoding
+import base85, mdiff, scmutil, util, diffhelpers, copies, encoding
 
 gitre = re.compile('diff --git a/(.*) b/(.*)')
 
@@ -1111,7 +1111,7 @@
     err = 0
     current_file = None
     cwd = os.getcwd()
-    opener = util.opener(cwd)
+    opener = scmutil.opener(cwd)
 
     for state, values in iterhunks(ui, fp):
         if state == 'hunk':