From 75985c6a8add6a75b65d790f1a007e6e208f94fa Mon Sep 17 00:00:00 2001
From: Lukas Schauer <lukas@schauer.so>
Date: Tue, 5 Apr 2016 20:08:40 +0200
Subject: [PATCH] make arguments to _mktemp optional (fixes #178)

---
 letsencrypt.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/letsencrypt.sh b/letsencrypt.sh
index 6606ac3..44e6c29 100755
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -24,7 +24,8 @@ BASEDIR="${SCRIPTDIR}"
 
 # Create (identifiable) temporary files
 _mktemp() {
-  mktemp -t letsencrypt.sh-XXXXXX "${@}"
+  # shellcheck disable=SC2068
+  mktemp -t letsencrypt.sh-XXXXXX ${@:-}
 }
 
 # Check for script dependencies