##### SUMMARY
Support become unprivileged user on macOS without `allow_world_readable_tmpfiles=true`

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
action, shell, and copy

##### ADDITIONAL INFORMATION
When using become where the login user and the become user are both unprivileged, Ansible attempts to securely change file permissions to only allow the become user to read the files. It uses `setfacl` and falls back to `chown`. Both of these fail on macOS, as there is no `setfacl` command and `chown` is not permitted.

macOS actually does provide the same functionality as `setfacl`, using `chmod +a`. The syntax is a bit different from `setfacl`, but it should be able to do what Ansible needs.
raise AnsibleError("module (%s) is missing interpreter line" % module_name)
        self._used_interpreter = shebang
        remote_module_path = None
        if not self._is_pipelining_enabled(module_style, wrap_async):
            
            if tmpdir is None:
                self._make_tmp_path()
                tmpdir = self._connection._shell.tmpdir
            remote_module_filename = self._connection._shell.get_remote_filename(module_path)
            remote_module_path = self._connection._shell.join_path(tmpdir, 'AnsiballZ_%s' % remote_module_filename)
        args_file_path = None
        if module_style in ('old', 'non_native_want_json', 'binary'):
            
            args_file_path = self._connection._shell.join_path(tmpdir, 'args')
        if remote_module_path or module_style != 'new':
            display.debug("transferring module to remote %s" % remote_module_path)
            if module_style == 'binary':
                self._transfer_file(module_path, remote_module_path)
            else:
                self._transfer_data(remote_module_path, module_data)
            if module_style == 'old':
                
                
                args_data = ""
                for k, v in iteritems(module_args):
                    args_data += '%s=%s ' % (k, shlex_quote(text_type(v)))
                self._transfer_data(args_file_path, args_data)
            elif module_style in ('non_native_want_json', 'binary'):
                self._transfer_data(args_file_path, json.dumps(module_args))
            display.debug("done transferring module to remote")