##### 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

```

documentation_url='http://docs.example.com',
                homepage_url='http://example.com',
                min_ansible_version=ansible_version[:3],  
                dependencies=[],
            ))
            obj_path = os.path.join(init_path, obj_name)
        elif galaxy_type == 'collection':
            namespace, collection_name = obj_name.split('.', 1)
            inject_data.update(dict(
                namespace=namespace,
                collection_name=collection_name,
                version='1.0.0',
                readme='README.md',
                authors=['your name <example@domain.com>'],
                license=['GPL-2.0-or-later'],
                repository='http://example.com/repository',
                documentation='http://docs.example.com',
                homepage='http://example.com',
                issues='http://example.com/issue/tracker',
                build_ignore=[],
            ))
            obj_path = os.path.join(init_path, namespace, collection_name)
        b_obj_path = to_bytes(obj_path, errors='surrogate_or_strict')
        if os.path.exists(b_obj_path):
            if os.path.isfile(obj_path):
                raise AnsibleError("- the path %s already exists, but is a file - aborting" % to_native(obj_path))
            elif not force:
                raise AnsibleError("- the directory %s already exists. "
                                   "You can use --force to re-initialize this directory,\n"
                                   "however it will reset any main.yml files that may have\n"