Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 11049)
+++ trunk/data/validator/deprecated.mapcss	(revision 11133)
@@ -526,5 +526,6 @@
 /* see #11234 */
 *[/=|\+|\/|&|<|>|;|'|"|%|#|@|\\|,|\.|\{|\}|\?|\*|\^|\$/] {
-  throwWarning: tr("key with uncommon character");
+  throwWarning: tr("{0}", "{0.key}");
+  group: tr("key with uncommon character");
 }