<!--- Verify first that your issue is not already reported on GitHub -->
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##### SUMMARY
hostname module fails on linux pardus distributions.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```
3.8.2
```

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

```

##### OS / ENVIRONMENT
Pardus Gnu/Linux 19.3


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

<!--- Paste example playbooks or commands between quotes below -->
```
 - name: set hostname
    hostname:
      name: "pardus"
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
should set hostname on pardus as well


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```
hostname module cannot be used on platform Linux (pardus)
```

sunos_facts['distribution'] = data.split()[0]
            sunos_facts['distribution_version'] = data.split()[1]
            sunos_facts['distribution_release'] = ora_prefix + data
            sunos_facts['distribution_major_version'] = uname_r.split('.')[1].rstrip()
            return sunos_facts
        uname_v = get_uname(self.module, flags=['-v'])
        distribution_version = None
        if 'SmartOS' in data:
            sunos_facts['distribution'] = 'SmartOS'
            if _file_exists('/etc/product'):
                product_data = dict([l.split(': ', 1) for l in get_file_content('/etc/product').splitlines() if ': ' in l])
                if 'Image' in product_data:
                    distribution_version = product_data.get('Image').split()[-1]
        elif 'OpenIndiana' in data:
            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):