prune: remove -v option to support old ssh-add

prune.sh

@@ -10,7 +10,7 @@ fi
 
 echo "=== Please enter SSH key passphrase.  Check Bitwarden for:"
 echo "===   borg $HOSTNAME / read-write SSH key"
-ssh-add -v "$(realpath "$(dirname "$0")")/ssh/id_ecdsa"
+ssh-add "$(realpath "$(dirname "$0")")/ssh/id_ecdsa"
 
 $BORG --rw prune \
         --verbose \