##### SUMMARY
`ansible-base collection list` doesn't show the packages installed by the new `ansible` package

As a workaround, you need to do:

```
COLLECTION_INSTALL=$(python -c 'import ansible, os.path ; print("%s/../ansible_collections" % os.path.dirname(ansible.__file__))')
ansible-galaxy collection list -p "$COLLECTION_INSTALL"
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
ansible-galaxy

##### ANSIBLE VERSION
```paste below
2.10 beta1
```

##### CONFIGURATION
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

1. Install Ansible 2.10.0a1
  https://pypi.python.org/packages/source/a/ansible/ansible-2.10.0a1.tar.gz

2. `ansible-galaxy collection list`

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below

```

galaxy_type = 'collection' if parser.metavar == 'COLLECTION_ACTION' else 'role'
        args_kwargs = {}
        if galaxy_type == 'collection':
            args_kwargs['help'] = 'The collection(s) name or path/url to a tar.gz collection artifact. This is ' \
                                  'mutually exclusive with --requirements-file.'
            ignore_errors_help = 'Ignore errors during installation and continue with the next specified ' \
                                 'collection. This will not ignore dependency conflict errors.'
        else:
            args_kwargs['help'] = 'Role name, URL or tar file'
            ignore_errors_help = 'Ignore errors and continue with the next specified role.'
        install_parser = parser.add_parser('install', parents=parents,
                                           help='Install {0}(s) from file(s), URL(s) or Ansible '
                                                'Galaxy'.format(galaxy_type))
        install_parser.set_defaults(func=self.execute_install)
        install_parser.add_argument('args', metavar='{0}_name'.format(galaxy_type), nargs='*', **args_kwargs)
        install_parser.add_argument('-i', '--ignore-errors', dest='ignore_errors', action='store_true', default=False,
                                    help=ignore_errors_help)
        install_exclusive = install_parser.add_mutually_exclusive_group()
        install_exclusive.add_argument('-n', '--no-deps', dest='no_deps', action='store_true', default=False,
                                       help="Don't download {0}s listed as dependencies.".format(galaxy_type))
        install_exclusive.add_argument('--force-with-deps', dest='force_with_deps', action='store_true', default=False,
                                       help="Force overwriting an existing {0} and its "
                                            "dependencies.".format(galaxy_type))
        if galaxy_type == 'collection':
            install_parser.add_argument('-p', '--collections-path', dest='collections_path',
                                        default=self._get_default_collection_path(),
                                        help='The path to the directory containing your collections.')
            install_parser.add_argument('-r', '--requirements-file', dest='requirements',
                                        help='A file containing a list of collections to be installed.')
            install_parser.add_argument('--pre', dest='allow_pre_release', action='store_true',