visionmedia/mocha — pull request #487 by mab-netdev (2012-07-02 13:08:13+00:00)
Title: Spurious 'undefined' output with log4js-node

When used with git://github.com/nomiddlename/log4js-node.git, mocha's use of console.log() to generate a blank line causes 'undefined' to be output instead.

So have replaced console.log() with console.log(''), as the easiest option.