add ps args to arg comment
--- diff/drivers/md/dm-mpath.c	2005-01-12 19:17:32.000000000 +0000
+++ source/drivers/md/dm-mpath.c	2005-01-12 19:17:43.000000000 +0000
@@ -405,10 +405,12 @@
 
 /*-----------------------------------------------------------------
  * Constructor/argument parsing:
- * <num multipath feature args> [<arg>]*
- * <num hw_handler args> [hw_handler [<arg>]*]
- * <num priority groups> [<selector> <num paths> <num selector args> 
- *                        [<path> [<arg>]* ]+ ]+
+ * <#multipath feature args> [<arg>]*
+ * <#hw_handler args> [hw_handler [<arg>]*]
+ * <#priority groups> 
+ *     [<selector> <#selector args> [<arg>]*
+ *      <#paths> <#per-path selector args> 
+ *         [<path> [<arg>]* ]+ ]+
  *---------------------------------------------------------------*/
 struct param {
 	unsigned min;