mkexp: added missing keyword substition for r609 (getconfig)

expargparse.py

 '''
 Specialized argument parser for mkexp tool.
 
-$Id: expargparse -1 2019-06-27 07:00:00Z m221078 $
+$Id$
 '''
 
 import argparse

getconfig

@@ -2,7 +2,7 @@
 #
 # Reconstruct config from update file, including command line
 #
-# $Id: getconfig -1 2019-06-26 18:00:00Z m221078 $
+# $Id$
 #
 
 import argparse