commit - b74c2a4b648047ba32d616f4704f4ff7473269a2
commit + 80f6ec26e02a0dd92f52e6d60a4bf68aea7320e6
blob - 6786b7c58078cb5d1a224400347d0c688894fede
blob + 79260a197f13e5b37b87626bc23c1c81f20e5fd5
--- diskinfo.c
+++ diskinfo.c
@@ -41,8 +41,8 @@ static void
 usage(void)
 {
 	fprintf(stderr,
-	    "usage: disks\n"
-	    "       disks dev\n");
+	    "usage: disks [-h]\n"
+	    "       disks [-h] dev\n");
 	exit(1);
 }