Expand the usage info to include the possible options for -i,

and fix the printf so that the line actually gets printed.

usr.sbin/moused/moused.c

@@ -1006,11 +1006,11 @@ cleanup(int sig)
 static void
 usage(void)
 {
-    fprintf(stderr, "%s\n%s\n%s\n",
+    fprintf(stderr, "%s\n%s\n%s\n%s\n",
 	"usage: moused [-DRcdfs] [-I file] [-F rate] [-r resolution] [-S baudrate]",
 	"              [-a X [,Y]] [-C threshold] [-m N=M] [-w N] [-z N]",
 	"              [-t <mousetype>] [-3 [-E timeout]] -p <port>",
-	"       moused [-d] -i <info> -p <port>");
+	"       moused [-d] -i <port|if|type|model|all> -p <port>");
     exit(1);
 }