Index: django/template/defaultfilters.py
===================================================================
--- django/template/defaultfilters.py	(revision 3177)
+++ django/template/defaultfilters.py	(working copy)
@@ -418,17 +418,17 @@
         return "%.1f MB" % (bytes / (1024 * 1024))
     return "%.1f GB" % (bytes / (1024 * 1024 * 1024))
 
-def pluralize(value):
+def pluralize(value, arg='s'):
     "Returns 's' if the value is not 1, for '1 vote' vs. '2 votes'"
     try:
         if int(value) != 1:
-            return 's'
+            return arg
     except ValueError: # invalid string that's not a number
         pass
     except TypeError: # value isn't a string or a number; maybe it's a list?
         try:
             if len(value) != 1:
-                return 's'
+                return arg
         except TypeError: # len() of unsized object
             pass
     return ''