chobj seems to have an error in arguments
Both for bucket level ACLs and key ACLs.
[derek@rock:~ ] $ chobj -m add -p liam:FULL_CONTROL test2:
usage: chobj [-h] [--version] [-D] [-V] [-A ACCESS_KEY] [-S SECRET_KEY]
[-H HOST] [-P PORT] [-r] -m {add,remove,clear} -p POLICY
[POLICY ...]
S3PATH
chobj: error: too few arguments
[derek@rock:~ ] $ chobj -m add -p liam:FULL_CONTROL test2:xae
usage: chobj [-h] [--version] [-D] [-V] [-A ACCESS_KEY] [-S SECRET_KEY]
[-H HOST] [-P PORT] [-r] -m {add,remove,clear} -p POLICY
[POLICY ...]
S3PATH
chobj: error: too few arguments