Index: openacs-4/packages/categories/tcl/widget-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/categories/tcl/widget-procs.tcl,v
diff -u -N -r1.30 -r1.30.2.1
--- openacs-4/packages/categories/tcl/widget-procs.tcl	29 Jun 2018 17:27:18 -0000	1.30
+++ openacs-4/packages/categories/tcl/widget-procs.tcl	14 Jun 2019 16:45:03 -0000	1.30.2.1
@@ -147,7 +147,7 @@
 	    lassign $category category_id category_name deprecated_p level
 	    set category_name [ns_quotehtml [lang::util::localize $category_name]]
 	    if { $level>1 } {
-		set category_name "[string repeat { } [expr {2*$level -4}]]..$category_name"
+		set category_name "[string repeat . [expr {2*$level -4}]]..$category_name"
 	    }
 	    lappend one_tree [list $category_name $category_id]
 	}