Index: openacs-4/packages/acs-authentication/tcl/authentication-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-authentication/tcl/authentication-procs.tcl,v
diff -u -N -r1.87.4.1 -r1.87.4.2
--- openacs-4/packages/acs-authentication/tcl/authentication-procs.tcl	25 Aug 2013 20:04:46 -0000	1.87.4.1
+++ openacs-4/packages/acs-authentication/tcl/authentication-procs.tcl	5 Sep 2013 11:50:59 -0000	1.87.4.2
@@ -64,7 +64,7 @@
     # set user_agent [string tolower [ns_set get [ns_conn headers] User-Agent]]
     # ns_log notice "URL have url, len=[string length $return_url] $user_agent"
 
-    if {[expr {[string length $return_url] > 2083}]} {
+    if {[string length $return_url] > 2083} {
       set message "Your login expired and the computed URL for automated continuation is too long. " 
       append message "If you were editing a from, please use the back button after logging in and resubmit the form." 
       set return_url [ad_get_login_url]