Index: openacs-4/packages/xotcl-request-monitor/www/stat-details.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-request-monitor/www/stat-details.tcl,v
diff -u -r1.13 -r1.13.2.1
--- openacs-4/packages/xotcl-request-monitor/www/stat-details.tcl	4 Aug 2018 18:55:48 -0000	1.13
+++ openacs-4/packages/xotcl-request-monitor/www/stat-details.tcl	30 Mar 2019 19:46:54 -0000	1.13.2.1
@@ -137,9 +137,9 @@
 set with_apps_tooltip(0) "Statistics without Communities"
 set not_with_apps [expr {!$with_apps}]
 
-set url_all [export_vars -base [ad_conn url] [list [list all $not_all] with_apps with_param]]
-set url_apps [export_vars -base [ad_conn url] [list all [list with_apps $not_with_apps] with_param]]
-set url_param [export_vars -base [ad_conn url] [list all with_apps [list with_param $not_with_param]]]
+set url_all   [export_vars -base [ad_conn url] {{all $not_all} with_apps with_param}]
+set url_apps  [export_vars -base [ad_conn url] {all {with_apps $not_with_apps} with_param}]
+set url_param [export_vars -base [ad_conn url] {all with_apps {with_param $not_with_param}}]
 
 switch -glob $orderby {
   *,desc {set order -decreasing}
Index: openacs-4/packages/forums/tcl/messages-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/forums/tcl/messages-procs.tcl,v
diff -u -r1.59.2.1 -r1.59.2.2
--- openacs-4/packages/forums/tcl/messages-procs.tcl	1 Mar 2019 10:15:34 -0000	1.59.2.1
+++ openacs-4/packages/forums/tcl/messages-procs.tcl	30 Mar 2019 19:51:36 -0000	1.59.2.2
@@ -368,12 +368,11 @@
 
     @author Peter Marklund
 } {
-    set subject_label "[_ forums.lt_First_post_in_subject]"
-    set child_label "[_ forums.Last_post_in_subject]"
+    set subject_label [_ forums.lt_First_post_in_subject]
+    set child_label [_ forums.Last_post_in_subject]
     set new_order_by [expr {$order_by eq "posting_date" ? "last_child_post" : "posting_date"}]
 
-    set export_vars [export_vars -override [list [list order_by $new_order_by]] {order_by forum_id}]
-    set toggle_url "[ad_conn url]?${export_vars}"
+    set toggle_url [export_vars -base [ad_conn url] -override {{order_by $new_order_by}} {order_by forum_id}]
     if {$order_by eq "posting_date"} {
         # subject selected
         set subject_link "<b>$subject_label</b>"
Index: openacs-4/packages/acs-api-browser/www/proc-view.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-api-browser/www/proc-view.tcl,v
diff -u -r1.16.2.2 -r1.16.2.3
--- openacs-4/packages/acs-api-browser/www/proc-view.tcl	20 Feb 2019 10:15:35 -0000	1.16.2.2
+++ openacs-4/packages/acs-api-browser/www/proc-view.tcl	30 Mar 2019 19:54:53 -0000	1.16.2.3
@@ -151,8 +151,8 @@
         set documentation [api_proc_documentation -script $proc_index]
     }
 }
-set procViewToggleURL [export_vars -base proc-view -no_empty [list proc [list source_p [expr {!$source_p}]] version_id]]
-set setDefaultURL [export_vars -base set-default [list source_p return_url]]
+set procViewToggleURL [export_vars -base proc-view -no_empty {proc {source_p [expr {!$source_p}]} version_id}]
+set setDefaultURL     [export_vars -base set-default {source_p return_url}]
 
 #
 # Local variables: