Just a few fixes to the nipapd man page
Just a few fixes to the nipapd man page

Not sure about the GitHub issue, it mentions --listen as missing, but it
was there just spelled incorrectly. Anyway, added --version too.

Fixes #479.

plajjan/NIPAP,plajjan/NIPAP,garberg/NIPAP,plajjan/NIPAP,garberg/NIPAP,fredsod/NIPAP,bbaja42/NIPAP,SoundGoof/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,bbaja42/NIPAP,ettrig/NIPAP,SpriteLink/NIPAP,ettrig/NIPAP,bbaja42/NIPAP,fredsod/NIPAP,SpriteLink/NIPAP,fredsod/NIPAP,SpriteLink/NIPAP,bbaja42/NIPAP,plajjan/NIPAP,fredsod/NIPAP,fredsod/NIPAP,ettrig/NIPAP,fredsod/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,bbaja42/NIPAP,SpriteLink/NIPAP,SoundGoof/NIPAP,garberg/NIPAP,plajjan/NIPAP,garberg/NIPAP,garberg/NIPAP,ettrig/NIPAP,SpriteLink/NIPAP,ettrig/NIPAP,ettrig/NIPAP,SoundGoof/NIPAP,plajjan/NIPAP,bbaja42/NIPAP,SoundGoof/NIPAP