Getting decrypted secret fails due to missing transport_key arg in store_crypto.py

[Adam Harwell]

In commit cd70a208c621400c3a26efccdf0a3135ff6ed44b the non-optional argument "transport_key" was added to the __init__ of SecretDTO in barbican/plugin/interface/secret_store.py but was not added to all of the code usages of this class. Specifically, barbican/plugin/store_crypto.py on line 108 in StoreCryptoAdapterPlugin.get_secret() only passes 4 args not 5.
It seems that the arg was originally meant to be optional, so it should be changed to "transport_key=None".

Old:
    def __init__(self, type, secret, key_spec, content_type, transport_key):

New:
    def __init__(self, type, secret, key_spec, content_type,
                 transport_key=None):

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/113044
Committed: https://git.openstack.org/cgit/openstack/barbican/commit/?id=e246a74c52d7d8941f971ef8000764fcaa161e0f
Submitter: Jenkins
Branch: master

commit e246a74c52d7d8941f971ef8000764fcaa161e0f
Author: Adam Harwell <email address hidden>
Date: Fri Aug 8 18:05:19 2014 -0500

    Make transport_key an optional arg in SecretDTO

    Change-Id: I4ab224e0484c99fbfdf5c6ea3d10e69a8c762d88
    Closes-Bug: #1354603