Merged rfc1123 date func tweak from branch

lib/python/App/Common.py

@@ -85,18 +85,16 @@
 
 """Commonly used utility functions."""
 
-__version__='$Revision: 1.3 $'[11:-2]
+__version__='$Revision: 1.4 $'[11:-2]
 
-from time import time, asctime, gmtime
-import sys, os
+import sys, os, time
 from string import split, rfind
 
 
-def rfc1123_date(t=None, time=time, asctime=asctime, gmtime=gmtime,
-                 split=split):
-    # Return an RFC 1123 format date string.
-    t=split(asctime(gmtime(t or time())))
-    return '%s, %s %s %s %s GMT' % (t[0],t[2],t[1],t[4],t[3])
+def rfc1123_date(ts=None, format='%a, %d %b %Y %H:%M:%S GMT'):
+    # Return an RFC 1123 format date string
+    if ts is None: ts=time.time()
+    return time.strftime(format, time.gmtime(ts))
 
 def absattr(attr, c=callable):
     # Return the absolute value of an attribute,