[tox] Block this stupid E265 error which breaks the IDLE

Python's Integrated Development Environmet has functions to
to comment out region and uncomment regions and therefore
uses "##" on first position of a line. Changing it breaks that
behaviour.

Change-Id: I9273a9b44c6c37d36fe9cffe34279360caa3e252
Merge "[tox] Block this stupid E265 error which breaks the IDLE"