<!--- Verify first that your issue is not already reported on GitHub -->
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##### SUMMARY
<!--- Explain the problem briefly below -->

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
Setup module and facts about de Operating System is detecting ansible_os_family as "Pop!_OS".
This distribution is based on Ubuntu, so it should be "Debian" the desired result

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```
ansible 2.9.6
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/moucho/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.8.2 (default, Apr 27 2020, 15:53:34) [GCC 9.3.0]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```
default configuration
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
Pop!_OS 20.04 LTS

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

<!--- Paste example playbooks or commands between quotes below -->
<!--- HINT: You can paste gist.github.com links for larger files -->

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

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
ansible_os_family: "Pop!_OS"
<!--- Paste verbatim command output between quotes -->

sunos_facts['distribution'] = 'OpenIndiana'
        elif 'OmniOS' in data:
            sunos_facts['distribution'] = 'OmniOS'
            distribution_version = data.split()[-1]
        elif uname_v is not None and 'NexentaOS_' in uname_v:
            sunos_facts['distribution'] = 'Nexenta'
            distribution_version = data.split()[-1].lstrip('v')
        if sunos_facts.get('distribution', '') in ('SmartOS', 'OpenIndiana', 'OmniOS', 'Nexenta'):
            sunos_facts['distribution_release'] = data.strip()
            if distribution_version is not None:
                sunos_facts['distribution_version'] = distribution_version
            elif uname_v is not None:
                sunos_facts['distribution_version'] = uname_v.splitlines()[0].strip()
            return sunos_facts
        return sunos_facts
class DistributionFactCollector(BaseFactCollector):
    name = 'distribution'
    _fact_ids = set(['distribution_version',
                     'distribution_release',
                     'distribution_major_version',
                     'os_family'])
    def collect(self, module=None, collected_facts=None):
        collected_facts = collected_facts or {}
        facts_dict = {}
        if not module:
            return facts_dict
        distribution = Distribution(module=module)
        distro_facts = distribution.get_distribution_facts()
        return distro_facts