yes: this applet doesn't have options, don't lie that it does.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/yes.c

@@ -18,6 +18,11 @@
 
 /* This is a NOFORK applet. Be very careful! */
 
+//usage:#define yes_trivial_usage
+//usage:       "[STRING]"
+//usage:#define yes_full_usage "\n\n"
+//usage:       "Repeatedly output a line with STRING, or 'y'"
+
 int yes_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int yes_main(int argc UNUSED_PARAM, char **argv)
 {