Index: openacs-4/packages/acs-bootstrap-installer/installer/www/blank-master.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-bootstrap-installer/installer/www/blank-master.tcl,v
diff -u -r1.6 -r1.7
--- openacs-4/packages/acs-bootstrap-installer/installer/www/blank-master.tcl	31 Jan 2018 20:45:38 -0000	1.6
+++ openacs-4/packages/acs-bootstrap-installer/installer/www/blank-master.tcl	25 Apr 2018 19:23:25 -0000	1.7
@@ -117,7 +117,7 @@
         if { [llength $css] == 2 && [llength $first] == 1 && [string index $first 0] ne "-"} {
             template::head::add_css -href $first -media [lindex $css 1]
         } elseif {[llength $first] == 2} {
-	    set params [list]
+	    set params {}
             foreach param $css {
                 lappend params -[lindex $param 0] [lindex $param 1]
             }