secret: Alter cleanup path for virSecretObjListGetUUIDs
    
    Rather than using "ret = -1" and cleanup processing, alter the return
    path on failure to goto error and then just return the data.got.
    
    In the error path, we no longer check for ret < 0, we just can free
    anything added to the array and return -1 directly.
    
    Signed-off-by: John Ferlan <jferlan@redhat.com>