Update Executor.php
Update Executor.php

There is a bug when showing /help with alias command, since I presume an alias is just another way to write the command. I decide to skip the alias: when showing help
I also added the command name in the output to show the user what comand to input.

Signed-off-by: Nicolas Morin <8a213233963ed87bdd5ceea8f9938c528aeb8ede@globetechnologie.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed