man pages for FreeBSD, NetBSD, OpenBSD and DragonFly

	b is	-, or 
		f|n|o|d, or 
		FreeBSD|NetBSD|OpenBSD|DragonFly, or 
		same lower case		, and
	p is the name of the manual page, and
	0 is the section number.

Now, what's mdoc?
See: — according to FreeBSD — according to NetBSD — according to OpenBSD — according to DragonFly

Or, if you will,

© 2013 Constantine A. Murenin (cnst)
nginx.conf | github | bitbucket

nginx/1.2.2 at