Merge client-skiplines-6433: Remove usage of skipLines in IRC example to avoid misrendering of example code.

Author: Julian
Reviewer: exarkun, thijs
Fixes: #6433


git-svn-id: svn://svn.twistedmatrix.com/svn/Twisted/trunk@38155 bbbe8e31-12d6-0310-92fd-ac37d47ddeeb