iplenable and ipfilter

[kwooding_(_at_)_codetalker_(_dot_)_com]

I got looking at this one today while working in ipfilter.

Looking through the history of sys/netinet/ip_fil.c, at some point
we decided to change the name of the filter enable/disable functions
from iplattach() to ipl_enable() (and same for disable). From the code:

/*
 * Since iplattach() is called by main() at boot time, we put in a 
 * fake stub so that none of the machinery is initialized till explicitly
 * enabled via ipf -E. Therefore we rename the real iplattach() to 
 * ipl_enable(). See also skeleton iplinit() later in this file. 
 */

I've faithfully preserved this modification in last three in-tree
versions, but, after taking a look, I don't think it is necessary. So
far as I can tell, we never call iplattach anywhere but within
ipfilter.

Can anyone enlighten me here? Is this renaming actually necessary?

-kj