##### 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

```

if role.install_info['version'] != role.version or force:
                    if force:
                        display.display('- changing role %s from %s to %s' %
                                        (role.name, role.install_info['version'], role.version or "unspecified"))
                        role.remove()
                    else:
                        display.warning('- %s (%s) is already installed - use --force to change version to %s' %
                                        (role.name, role.install_info['version'], role.version or "unspecified"))
                        continue
                else:
                    if not force:
                        display.display('- %s is already installed, skipping.' % str(role))
                        continue
            try:
                installed = role.install()
            except AnsibleError as e:
                display.warning(u"- %s was NOT installed successfully: %s " % (role.name, to_text(e)))
                self.exit_without_ignore()
                continue
            
            if not no_deps and installed:
                if not role.metadata:
                    display.warning("Meta file %s is empty. Skipping dependencies." % role.path)
                else:
                    role_dependencies = (role.metadata.get('dependencies') or []) + role.requirements
                    for dep in role_dependencies:
                        display.debug('Installing dep %s' % dep)
                        dep_req = RoleRequirement()
                        dep_info = dep_req.role_yaml_parse(dep)
                        dep_role = GalaxyRole(self.galaxy, self.api, **dep_info)