##### SUMMARY
The documentation of the module *user* / parameter *shell* states:

https://github.com/ansible/ansible/blob/8edad83ae029d7838a6d6347576d2ddbcce12ad0/lib/ansible/modules/system/user.py#L79

But there are no (shell specific) notes.
##### ISSUE TYPE
- Documentation Report

##### COMPONENT NAME
user / docs

##### ANSIBLE VERSION
devel branch

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### ADDITIONAL INFORMATION
Either remove the sentence or provide some information in the notes section.

super(DarwinUser, self).__init__(module)
        
        if self.hidden is None:
            if self.system:
                self.hidden = 1
        elif self.hidden:
            self.hidden = 1
        else:
            self.hidden = 0
        
        if self.hidden is not None:
            self.fields.append(('hidden', 'IsHidden'))
    def _get_dscl(self):
        return [self.module.get_bin_path('dscl', True), self.dscl_directory]
    def _list_user_groups(self):
        cmd = self._get_dscl()
        cmd += ['-search', '/Groups', 'GroupMembership', self.name]
        (rc, out, err) = self.execute_command(cmd, obey_checkmode=False)
        groups = []
        for line in out.splitlines():
            if line.startswith(' ') or line.startswith(')'):
                continue
            groups.append(line.split()[0])
        return groups
    def _get_user_property(self, property):