Fix send_message function

vaultwarden-backup.sh

@@ -15,20 +15,19 @@ set -o nounset
 # Don't hide errors within pipes
 set -o pipefail
 
-# Set your API key here
+# set your API key here
 key=
 
-# Set your chat id here
+# set your chat id here
 chat_id=
 
 function send_message() {
   if ! [ $# -eq 0 ]; then
     curl --silent --show-error --fail --request POST "https://api.telegram.org/$key/sendMessage" --data chat_id="$chat_id" --data text="$1" --output /dev/null
-    exit
+  else
+    echo "No argument supplied, please specify the message to send"
+    exit 1
   fi
-
-  echo "No argument supplied, please specify the message to send"
-  exit 1
 }
 
 function backup_vaultwarden {