Add comment about why we need a while loop in e303
Add comment about why we need a while loop in e303

See test_target.py for an example where there is a comment after too
many empty lines.

hhatto/autopep8,Vauxoo/autopep8,Vauxoo/autopep8,SG345/autopep8,SG345/autopep8,MeteorAdminz/autopep8,vauxoo-dev/autopep8,MeteorAdminz/autopep8,vauxoo-dev/autopep8,hhatto/autopep8