##### 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

```

else:
                
                collection_path = validate_collection_path(path)
                if os.path.isdir(collection_path):
                    display.vvv("Searching {0} for collections".format(collection_path))
                    collections = find_existing_collections(collection_path, fallback_metadata=True)
                else:
                    
                    
                    display.vvv("No 'ansible_collections' directory found at {0}".format(collection_path))
                    continue
                if not collections:
                    display.vvv("No collections found at {0}".format(collection_path))
                    continue
                
                fqcn_width, version_width = _get_collection_widths(collections)
                _display_header(collection_path, 'Collection', 'Version', fqcn_width, version_width)
                
                collections.sort(key=to_text)
                for collection in collections:
                    _display_collection(collection, fqcn_width, version_width)
        
        if collection_found and collection_name:
            warnings = []
        for w in warnings:
            display.warning(w)
        if not path_found:
            raise AnsibleOptionsError("- None of the provided paths were usable. Please specify a valid path with --{0}s-path".format(context.CLIARGS['type']))
        return 0
    def execute_publish(self):