Index: openacs-4/packages/acs-tcl/tcl/request-processor-init.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/request-processor-init.tcl,v
diff -u -r1.19 -r1.20
--- openacs-4/packages/acs-tcl/tcl/request-processor-init.tcl	1 Oct 2017 12:16:05 -0000	1.19
+++ openacs-4/packages/acs-tcl/tcl/request-processor-init.tcl	25 Apr 2018 19:23:26 -0000	1.20
@@ -116,7 +116,7 @@
     if {[nsv_exists rp_filters .]} {
         set filters [nsv_get rp_filters .]
     } else {
-        set filters [list]
+        set filters {}
     }
     # This lsort is what makes the priority stuff work. It guarantees
     # that filters are registered in order of priority. AOLServer will
@@ -159,7 +159,7 @@
     if {[nsv_exists rp_registered_procs .]} {
         set procs [nsv_get rp_registered_procs .]
     } else {
-        set procs [list]
+        set procs {}
     }
 
     set proc_index 0