Pick up the documentation for all of the modules and print it out.

def print_docs(self):
        '''
        Pick up the documentation for all of the modules and print it out.
        '''
        docs = {}
        for name, func in six.iteritems(self.minion.functions):
            if name not in docs:
                if func.__doc__:
                    docs[name] = func.__doc__
        for name in sorted(docs):
            if name.startswith(self.opts.get('fun', '')):
                salt.utils.stringutils.print_cli('{0}:\n{1}\n'.format(name, docs[name]))