Remove accidental epizeuxis

[taylor1791]

While reading the source I discovered this sentence, emphasis mine: "the namespace string for the for the debug instance to be colored." Epizeuxes are an incredibly powerful technique, but this use seems to fall short of its potential. Also, it was probably an accident.

[coveralls]

Coverage remained the same at 89.324% when pulling 897cdbe on taylor1791:master into e47f96d on visionmedia:master.

[Qix-]

Thanks :)