Add missing comma in case statement.

There was a syntax error with a missing comma.  Fix.


git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/trunk/TableTool@8517 57e6efec-57d4-0310-aeb1-a6c144bb1a8b

TTdiag.m

@@ -46,7 +46,7 @@ switch Action,
         catch exception
             msgbox(exception.identifier);
         end
-    case 'Delete'
+    case 'Delete',
         blockHandleTTTopMask = orig_gcbh;
         data = get_param(blockHandleTTTopMask,'UserData');
         if isempty(data)