diff -r 9626819b2e3d -r 08cabecfa8a8 mercurial/changelog.py
--- a/mercurial/changelog.py	Sat Jan 10 18:02:38 2009 -0600
+++ b/mercurial/changelog.py	Sun Jan 11 22:48:28 2009 -0600
@@ -8,7 +8,7 @@
 from node import bin, hex, nullid
 from revlog import revlog, RevlogError
 from i18n import _
-import util
+import util, error
 
 def _string_escape(text):
     """
@@ -179,7 +179,8 @@
 
         user = user.strip()
         if "\n" in user:
-            raise RevlogError(_("username %s contains a newline") % repr(user))
+            raise error.RevlogError(_("username %s contains a newline")
+                                    % repr(user))
         user, desc = util.fromlocal(user), util.fromlocal(desc)
 
         if date: