##### 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.

cmd.append('-g')
                cmd.append(self.group)
        if self.shell is not None and info[6] != self.shell:
            cmd.append('-s')
            cmd.append(self.shell)
        if self.login_class is not None:
            
            user_login_class = None
            if os.path.exists(self.SHADOWFILE) and os.access(self.SHADOWFILE, os.R_OK):
                with open(self.SHADOWFILE, 'r') as f:
                    for line in f:
                        if line.startswith('%s:' % self.name):
                            user_login_class = line.split(':')[4]
            
            if self.login_class != user_login_class:
                cmd.append('-L')
                cmd.append(self.login_class)
        if self.groups is not None:
            current_groups = self.user_group_membership()
            groups = self.get_groups_set()
            group_diff = set(current_groups).symmetric_difference(groups)
            groups_need_mod = False
            if group_diff:
                if self.append:
                    for g in groups:
                        if g in group_diff:
                            groups_need_mod = True
                            break
                else:
                    groups_need_mod = True