mastodon_db_backup.sh - remove debug echo

backups/mastodon_db_backup.sh

@@ -32,5 +32,5 @@ backup() {
 # Iterate over all matching container names
 for cname in $(docker container ls -f name=$container --format '{{.Names}}')
 do 
-  echo backup $cname
+  backup $cname
 done