--- bin/rgds-tree.orig	2016-05-16 07:41:38 UTC
+++ bin/rgds-tree
@@ -64,11 +64,11 @@ opts = GetoptLong.new(
 
 opts.each do |option, argument|
   case option
-  when '--top-structs' : top_structs = argument.split(/\s+/)
-  when '--inst-counts' : show_inst_counts = argument
-  when '--broken-refs' : broken_refs = argument
-  when '--delimiter'   : delimiter = argument
-  when '--help'        : abort usage
+  when '--top-structs'  then top_structs = argument.split(/\s+/)
+  when '--inst-counts'  then show_inst_counts = argument
+  when '--broken-refs'  then broken_refs = argument
+  when '--delimiter'    then delimiter = argument
+  when '--help'         then abort usage
   end
 end
 
@@ -111,8 +111,8 @@ class HierStruct
       else
         # broken reference; deal with appropriately
         case @broken_refs
-        when :annotate : $stdout.puts string + '(MISSING)'
-        when :prune    : nil
+        when :annotate  then $stdout.puts string + '(MISSING)'
+        when :prune     then nil
         else
           $stdout.puts string + @delimiter + struct_name + cnt_suffix
         end