make iniconfig accept ";;" as comment sign

[pytestbot]

• Bitbucket: https://bitbucket.org/pytest-dev/py/issue/9
• Originally reported by: @hpk42
• Originally created at: 2011-11-30T18:14:42.822

When having ";;" in setup.cfg or tox.ini files iniconfig bails out with e.g.:

py._iniconfig.ParseError: /Users/hpk/p/pytest-xdist/tox.ini:24: unexpected line: ';; hello'

It should

[pytestbot]

Original comment by @RonnyPfannschmidt

fixed in <<changeset 1166a7c0d608>>