Move portsnap.conf to head/usr.sbin/portsnap/portsnap/

This is prep for pkgbase to have config files tagged as such.

Approved by:	will (mentor)
Differential Revision:	https://reviews.freebsd.org/D16554

etc/Makefile

@@ -107,10 +107,6 @@ SSH=	${SRCTOP}/crypto/openssh/ssh_config \
 SSL=	${SRCTOP}/crypto/openssl/apps/openssl.cnf
 .endif
 
-.if ${MK_PORTSNAP} != "no"
-BIN1+= portsnap.conf
-.endif
-
 .if ${MK_PF} != "no"
 BIN1+= pf.os
 .endif

usr.sbin/portsnap/portsnap/Makefile

@@ -1,5 +1,6 @@
 # $FreeBSD$
 
+CONFS=	portsnap.conf
 SCRIPTS=portsnap.sh
 MAN=	portsnap.8