##### SUMMARY
`ansible-galaxy collection install` currently requires the user to specify an install path using the `-p` option. Galaxy currently generates and displays the CLI command for installing a collection. There is no way for Galaxy to determine a value for `-p`, and hard coding a default value into Galaxy makes no sense.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
`ansible-galaxy`

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```
ansible 2.10.0.dev0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/Users/chouseknecht/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /Users/chouseknecht/projects/ansible/lib/ansible
  executable location = /Users/chouseknecht/.pyenv/versions/venv27/bin/ansible
  python version = 2.7.14 (default, Nov 14 2017, 23:24:24) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.38)]
```

"""
        prints out detailed information about an installed role as well as info available from the galaxy API.
        """
        roles_path = context.CLIARGS['roles_path']
        data = ''
        for role in context.CLIARGS['args']:
            role_info = {'path': roles_path}
            gr = GalaxyRole(self.galaxy, self.api, role)
            install_info = gr.install_info
            if install_info:
                if 'version' in install_info:
                    install_info['installed_version'] = install_info['version']
                    del install_info['version']
                role_info.update(install_info)
            remote_data = False
            if not context.CLIARGS['offline']:
                remote_data = self.api.lookup_role_by_name(role, False)
            if remote_data:
                role_info.update(remote_data)
            if gr.metadata:
                role_info.update(gr.metadata)
            req = RoleRequirement()
            role_spec = req.role_yaml_parse({'role': role})
            if role_spec:
                role_info.update(role_spec)