https://github.com/ansible/ansible/blob/1706d35fc476e36fcced25435c2f1c2401536376/test/lib/ansible_test/_util/controller/sanity/validate-modules/validate_modules/main.py#L414

When a module is in place to provide documentation for an action, it should be allowed to have a doc string.

Without a docstring users of pydocstring will need to suppress:

```
************* Module plugins.modules.git_away
plugins/modules/git_away.py:1:0: C0114: Missing module docstring (missing-module-docstring)
************* Module plugins.modules.git_here
plugins/modules/git_here.py:1:0: C0114: Missing module docstring (missing-module-docstring)
```

With a doc string the module is treated as a "real" module and fails sanity:

```
ansible-module-not-initialized: Execution of the module did not result in initialization of AnsibleModule
```

PEP257 suggests modules should have a docstring, and is generally considered a good practice to inform future developers of the purpose of the file and can be used for documentation generation as well.
temp_reports = OrderedDict()
        for path, report in reports.items():
            if report['errors'] or report['warnings']:
                temp_reports[path] = report
        return temp_reports
    def plain(self, warnings=False, output='-'):
        """Print out the test results in plain format
        output is ignored here for now
        """
        ret = []
        for path, report in Reporter._filter_out_ok(self.files).items():
            traces = report['traces'][:]
            if warnings and report['warnings']:
                traces.extend(report['warning_traces'])
            for trace in traces:
                print('TRACE:')
                print('\n    '.join(('    %s' % trace).splitlines()))
            for error in report['errors']:
                error['path'] = path
                print('%(path)s:%(line)d:%(column)d: E%(code)s %(msg)s' % error)
                ret.append(1)
            if warnings:
                for warning in report['warnings']:
                    warning['path'] = path
                    print('%(path)s:%(line)d:%(column)d: W%(code)s %(msg)s' % warning)
        return 3 if ret else 0
    def json(self, warnings=False, output='-'):