fix XUnit reporter output. Closes #2584
fix XUnit reporter output. Closes #2584

boneskull/mocha,mochajs/mocha,nightwatchjs/mocha-nightwatch,outsideris/mocha,beatfactor/mocha,adamgruber/mocha,hoverduck/mocha,menelaos/mocha-solarized,boneskull/mocha,villesau/mocha,nightwatchjs/mocha-nightwatch,mochajs/mocha,rlugojr/mocha,beatfactor/mocha,villesau/mocha,apkiernan/mocha,rlugojr/mocha,JohnnyEstilles/mocha,mochajs/mocha,sul4bh/mocha,villesau/mocha,adamgruber/mocha,hoverduck/mocha,beatfactor/mocha,igwejk/mocha,JohnnyEstilles/mocha,menelaos/mocha-solarized,rlugojr/mocha,apkiernan/mocha,sul4bh/mocha,adamgruber/mocha,outsideris/mocha,JohnnyEstilles/mocha,hoverduck/mocha,nightwatchjs/mocha-nightwatch,boneskull/mocha,sul4bh/mocha,menelaos/mocha-solarized,apkiernan/mocha,igwejk/mocha,hoverduck/mocha