From 98bb5ada58ce1da6e8bbd7cdba449903f52c1a0c Mon Sep 17 00:00:00 2001
From: Lorenzo Manacorda <lorenzo@mailbox.org>
Date: Wed, 15 Apr 2020 16:49:20 +0200
Subject: [PATCH] libexec/klab-fetch: print usage on missing arg

---
 libexec/klab-fetch | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libexec/klab-fetch b/libexec/klab-fetch
index c00ef821..43afe77f 100755
--- a/libexec/klab-fetch
+++ b/libexec/klab-fetch
@@ -5,6 +5,7 @@ if [ -z "$KLAB_OUT" ]; then
   KLAB_OUT=out
 fi
 
+[[ $# -eq 1 ]] || (echo >&2 "Usage: klab fetch \$URL" && exit 1)
 url=$1
 filename=${url##*/}