Sounds like a debug line that got left in the build. At least he used something descriptive and safe sounding. Not that I would know about anything nsfw messages left in code. 
I do my damnedest to always force myself to wrapper quick debug test like this just in case I forget to remove them before check in.
#ifdef syscfgDEBUG_COMMANDS
chatclntAdd2DText("Toggled line of text", 0, 0, 0.5f, stdoGetStdFont(stdoFI_LARGE), grGREEN_RGB, 5000);
#endif
With the syscfgDEBUG_COMMANDS define.
Alas I got lazy and didn't on this one when I was creating the Timed center line system. And of course it bit me.
HiTech