This time try harder to fix *all* incorrect RUN_DEPENDS:

1. A user (bento for example) may not have ${LOCALBASE}/sbin in his PATH, so use explicit path to the dependency instead of just executable name;
2. isc-dhcp3 port installs executable called dhcpd, not isc-dhcp3;
3. samba port installs executable called smbd, not samba;
4. cnews port installs executable called cnewsdo, not cnews;
5. apache13 port installs executable called httpd, not apache13;
6. squid23 port installs executable called squid, not squid23.

Submitted by: bento