fix typo

Author: Richard Jones

roundup/cgi/templating.py

@@ -2827,7 +2827,7 @@ def html_calendar(self, request):
 
         html will simply be a table.
         """
-        tz = request.client.db.getUserTimezone())
+        tz = request.client.db.getUserTimezone()
         current_date = date.Date(".").local(tz)
         date_str  = request.form.getfirst("date", current_date)
         display   = request.form.getfirst("display", date_str)