There's a rogue fragment of a sentence in ipf.5, the following patch removes it.
Cheers, Timo Buhrmester --- external/bsd/ipf/dist/man/ipf.5.orig 2015-03-19 22:15:46.000000000 +0100 +++ external/bsd/ipf/dist/man/ipf.5 2015-03-19 22:15:42.000000000 +0100 @@ -326,8 +326,6 @@ possible to match on them in different ways. IPFilter allows you to use the following logical operations: .IP "< x" -is true if the port number is greater than or equal to x and less than or -equal to y is true if the port number in the packet is less than x .IP "<= x" is true if the port number in the packet is less than or equal to x
