Suggested by: neil.long@materials.oxford.ac.uk (Neil J Long)
Add etc/rc.d/arpwatch.sh
Don't mention arp.dat as an "installed" file - we may want
this after pkg_delete.
* CATEGORIES doens't have ``+'' anymore
* manpages should be listed in MAN8 so they get compressed
* use ${MKDIR} so parrent dirs get created if nessicary
* blank likes around MAINTAINER
* PKGNAME isn't needed when PKGNAME is same as DISTNAME