sphinxext: wrong formatting for --foo-bar style mandatory argument

[Akihiro Motoki]

When --foo-bar style mandatory option is used, autoprogram-cliff sphinx extensions renders the usage wrongly.

Note that option references are rendered correctly.
This only happens when rendering usage summary.

For example, https://docs.openstack.org/python-neutronclient/latest/cli/osc/v2/network-trunk.html#network-trunk-create

openstack network trunk create
    [-f {json,shell,table,value,yaml}]
    [-c COLUMN]
    [--prefix PREFIX]
    [--noindent]
    [--max-width <integer>]
    [--fit-width]
    [--print-empty]
    [--description <description>]
    --parent
    -p
    ort
    <parent-port>
    [--subport <port=,segmentation-type=,segmentation-id=>]
    [--enable | --disable]
    [--project <project>]
    [--project-domain <project-domain>]
    <name>

[Yushiro FURUKAWA (y-furukawa-2)]

Here is a patch: https://review.openstack.org/#/c/486562/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/486562
Committed: https://git.openstack.org/cgit/openstack/cliff/commit/?id=d327658a75abcf46e25c7bb8e2f606d7772d8158
Submitter: Jenkins
Branch: master

commit d327658a75abcf46e25c7bb8e2f606d7772d8158
Author: Yushiro FURUKAWA <email address hidden>
Date: Mon Jul 24 19:39:04 2017 +0900

    Fix regexp for detecting long options

    This commit fixes regexp in order to detect mandatory long arguments
    with hyphen like '--foo-bar <foo-bar>'.

    Note that https://review.openstack.org/#/c/496189/ fixes the bug
    paritally but it does not cover all cases.

    Closes-Bug: #1706311
    Co-Authored-By: Akihiro Motoki <email address hidden>
    Change-Id: I52b9fdecbf1abea1f819b0061fd80b7ca6e0906d

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cliff 2.9.0 release.