ban command needs 100% branch test coverage

[jayvdb]

plugins/ban.py 37 0 18 6 89% 21->24, 38->36, 42->36, 56->59, 72->70, 76->70

https://travis-ci.org/jayvdb/corobo/builds/413532424

[sladyn98]

@jayvdb Can i know how are the individual test being conducted for each file specified in the travis.yml .Because from what i understand there are a specific number of files for which travis is conducting tests.

[Anmolbansal1]

@jayvdb, please assign this issue to me.

[codehobbyist06]

I have created a pull request referencing this issue. Can u pls check?