MFC r207186: sysctl(3): Update description of various kern.* variables. Also add xrefs for confstr(3) (as sysconf(3) but for strings) and kvm(3) (which is a more convenient way to access some of the variables). PR: 116480
stable/7/lib/libc/
stable/7/lib/libc/gen/sysctl.3
stable/7/lib/libc/stdtime/