911d1ec30d
The .Fx macro was missing 2.1.7. Add 2.2.5 to both .Os and .Fx. If I'm wrong about the version number, no big deal - it can be removed later, but I wanted to be able to get this into 2.2 so that when I'm using a 2.2 system ome months down the line, man pages intended for (what I think will be the next 2.2 release) will be formatted properly. Also fix a typo in a comment.