diff -r ec5d77eb3431 -r 62e0bb41e682 mercurial/templater.py
--- a/mercurial/templater.py	Mon Mar 31 21:49:32 2008 -0500
+++ b/mercurial/templater.py	Mon Mar 31 21:49:33 2008 -0500
@@ -114,7 +114,7 @@
                 v = v(**map)
             if format:
                 if not hasattr(v, '__iter__'):
-                    raise SyntaxError(_("Error expanding '%s%s'")
+                    raise SyntaxError(_("Error expanding '%s%%%s'")
                                       % (key, format))
                 lm = map.copy()
                 for i in v: