Index: openacs-4/packages/dotlrn/www/admin/become.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn/www/admin/become.tcl,v
diff -u -r1.2 -r1.2.12.1
--- openacs-4/packages/dotlrn/www/admin/become.tcl	13 Jan 2005 13:57:21 -0000	1.2
+++ openacs-4/packages/dotlrn/www/admin/become.tcl	18 Aug 2014 19:22:03 -0000	1.2.12.1
@@ -5,5 +5,5 @@
     @creation-date 27 Jan 2000
 
 } {
-    user_id
+    user_id:naturalnum,notnull
 }