Since inetd is no longer started by default and inetd.conf has been relegated to /etc/examples, this sentence can probably be deleted from afterboot.8.
Regards, Index: afterboot.8 =================================================================== RCS file: /cvs/src/share/man/man8/afterboot.8,v retrieving revision 1.148 diff -u -p -r1.148 afterboot.8 --- afterboot.8 21 Sep 2015 09:23:35 -0000 1.148 +++ afterboot.8 24 Sep 2015 14:40:09 -0000 @@ -510,10 +510,6 @@ or You might wish to tighten up security more by editing .Pa /etc/fbtab as when installing X. -In -.Pa /etc/inetd.conf -comment out any extra entries you do not need, -and only add things that are really needed. .Ss Other files in /etc Look at the other files in .Pa /etc