Tell the minion to reload the execution modules

        CLI Example:

        .. code-block:: bash

            salt '*' sys.reload_modules

def gen_modules(self, initial_load=False):
        '''
        Tell the minion to reload the execution modules

        CLI Example:

        .. code-block:: bash

            salt '*' sys.reload_modules
        '''
        self.utils = salt.loader.utils(self.opts)
        self.functions = salt.loader.minion_mods(
            self.opts,
            utils=self.utils,
            whitelist=self.whitelist,
            initial_load=initial_load)
        self.serializers = salt.loader.serializers(self.opts)
        if self.mk_returners:
            self.returners = salt.loader.returners(self.opts, self.functions)
        if self.mk_states:
            self.states = salt.loader.states(self.opts,
                                             self.functions,
                                             self.utils,
                                             self.serializers)
        if self.mk_rend:
            self.rend = salt.loader.render(self.opts, self.functions)
        if self.mk_matcher:
            self.matchers = salt.loader.matchers(self.opts)
        self.functions['sys.reload_modules'] = self.gen_modules