Error infomation when file api-paste.ini not exsit

[Aaron DH]

start magnum-api when api_paste.ini not exsit ,
can not catch ConfigFilesNotFoundError , and error occurs as follow:

2016-03-28 14:54:47.780 CRITICAL magnum [-] NoSuchOptError: no such option in group DEFAULT: api_paste_config

2016-03-28 14:54:47.780 TRACE magnum Traceback (most recent call last):
2016-03-28 14:54:47.780 TRACE magnum File "/usr/local/bin/magnum-api", line 10, in <module>
2016-03-28 14:54:47.780 TRACE magnum sys.exit(main())
2016-03-28 14:54:47.780 TRACE magnum File "/opt/stack/magnum/magnum/cmd/api.py", line 43, in main
2016-03-28 14:54:47.780 TRACE magnum app = api_app.load_app()
2016-03-28 14:54:47.780 TRACE magnum File "/opt/stack/magnum/magnum/api/app.py", line 83, in load_app
2016-03-28 14:54:47.780 TRACE magnum raise cfg.ConfigFilesNotFoundError([cfg.CONF.api_paste_config])
2016-03-28 14:54:47.780 TRACE magnum File "/usr/local/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2183, in __getattr__
2016-03-28 14:54:47.780 TRACE magnum raise NoSuchOptError(name)
2016-03-28 14:54:47.780 TRACE magnum NoSuchOptError: no such option in group DEFAULT: api_paste_config

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/298087
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=ce55b7619f683d308e414bb2cc8812f5b38e66ef
Submitter: Jenkins
Branch: master

commit ce55b7619f683d308e414bb2cc8812f5b38e66ef
Author: Aaron-DH <email address hidden>
Date: Fri Mar 25 20:15:22 2016 +0800

    Fix config error

    Replace cfg.CONF.api_paste_ini to cfg.CONF.api.api_paste_ini

    Change-Id: Ibf61fb37f1dae877bbeab3dfcb005be52187fe1a
    Closes-Bug: #1562725

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/magnum 3.0.0 release.