better help handling for check_gemini

monitoring/check_gemini.sh

@@ -2,7 +2,7 @@
 
 TLS_CLIENT="/usr/local/bin/gnutls-cli -p 1965"
 
-if [ "$1" = "-h" ]
+if [ "$1" = "-h" ] || [ "$1" = "--help" ]
 then
   echo "usage: $0 <capsule name> (without gemini:// scheme)"
   echo
@@ -11,6 +11,7 @@ fi
 
 errorOutput=$(echo -n  "gemini://$1/\r\n" | ${TLS_CLIENT} $1 2>&1 > /dev/null)
 errorCode=$?
+
 if [ $errorCode -gt 0 ]
 then
   echo "ERROR: ${errorOutput}"
@@ -19,3 +20,4 @@ else
   echo "OK: capsule responding"
   return 0
 fi
+