Correct oauth create_request_token documentation

[Felipe Monteiro]

Currently, the oauth documentation for the `create_request_token`
endpoint is incorrect. The parameter "requested_project_id" [0]
is actually spelled "Request-Project-Id" and is located in the
header, not the body, of the request object [1].

[0] https://developer.openstack.org/api-ref/identity/v3-ext/?expanded=create-request-token-detail
[1] https://github.com/openstack/keystone/blob/e5edf3fc2823cdfc079efac0026e8f970c212677/keystone/oauth1/controllers.py#L220

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/459114

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/459114
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=c8ffdf0bf60ab2d2095f5d4cd301586271f274f1
Submitter: Jenkins
Branch: master

commit c8ffdf0bf60ab2d2095f5d4cd301586271f274f1
Author: Felipe Monteiro <email address hidden>
Date: Sun Apr 23 16:41:46 2017 +0100

    Correct oauth create_request_token documentation

    Currently, the oauth documentation for the `create_request_token`
    endpoint is incorrect. The parameter "requested_project_id" [0]
    is actually spelled "Request-Project-Id" and is located in the
    header, not the body, of the request object [1].

    [0] https://developer.openstack.org/api-ref/identity/v3-ext/?expanded=create-request-token-detail
    [1] https://github.com/openstack/keystone/blob/master/keystone/oauth1/controllers.py#L220

    Change-Id: Ib249efffc1e7a14635ab5d767cb70caa8b8baf0f
    Closes-Bug: #1685634

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/keystone 12.0.0.0b2 development milestone.