replace svnversion call with mimiced output for non-SVN tarballs for older versions of svnversion, i.e 'exported'
author: Kenneth Hoste (Ghent University)
--- Python-2.5.6/configure.orig	2015-04-29 10:40:05.254502098 +0200
+++ Python-2.5.6/configure	2015-04-29 10:42:01.739388944 +0200
@@ -4242,7 +4242,8 @@
 
 if test $SVNVERSION = found
 then
-	SVNVERSION="svnversion \$(srcdir)"
+	#SVNVERSION="svnversion \$(srcdir)"
+	SVNVERSION="echo exported"
 else
 	SVNVERSION="echo exported"
 fi
