policy-classifier create/update does not accept disjoint set of ports

[puppet-py]

policy-classifier create/update does not accept disjoint set of ports either a 'comma-separated' string or "white-space separated" string. Basically if user has to allow a disjoint range of ports, today he will not be able to do it without range but that too it is little obscure..For example: if wants to allow Port 21 and 80, both then he has to do 21-80, cannot do 21,80

test@localhost:~/devstack$ gbp policy-classifier-create test1 --port-range '500,530'
Bad Request (HTTP 400) (Request-ID: req-7296c374-5971-45c0-9bde-52a063091e24)
test@localhost:~/devstack$
test@localhost:~/devstack$ gbp policy-classifier-create test1 --port-range "500 530"
Bad Request (HTTP 400) (Request-ID: req-d3e2f0b9-177c-4c65-bc8a-fdd002a0a7bb)
test@localhost:~/devstack$