Dialog: Fixed lurking html tag in XML doc

modules_k/dialog/doc/dialog_admin.xml

@@ -1439,7 +1439,7 @@ dlg_refer("caller", "sip:[email protected]");
 		dialog created is further processed statefully. Specifically, if a
 		stateless response is sent out after dlg_manage() is called, the
 		dialog cannot be handled properly. So make sure that a transaction
-		exists or create it explicitly using the tm module.<br>This is a
+		exists or create it explicitly using the tm module. This is a
 		shortcoming of the current implementation that may be resolved in a
 		future version hopefully.
 		</para>