Index: trunk/Ohana/src/opihi/cmd.basic/strmatch.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.basic/strmatch.c	(revision 37049)
+++ trunk/Ohana/src/opihi/cmd.basic/strmatch.c	(revision 40521)
@@ -18,4 +18,5 @@
   if (argc != 3) {
     gprint (GP_ERR, "USAGE: strchr (string) (class) [-output start length]\n");
+    gprint (GP_ERR, "  return start and end position of given character class (alpha, upper, lower, float, int)\n");
     return (FALSE);
   }