symfony/symfony-docs — pull request #4057 by carltondickson (2014-07-25 10:48:46+00:00)
Title: Update introduction.rst

In my opinion a note or example needs to be added to the command test example to show that the option name needs to be prefixed with a double hyphen.

Admittedly there is a similar example of passing an option to a command at https://github.com/symfony/symfony-docs/blob/2.4/components/console/introduction.rst#calling-an-existing-command but this could easily be missed.