1) Update pkg/PLIST.
2) Change to depend on perlsh's install mechanism.
3) New patch (patch-aa) fixes PREFIX problem.
4) Account for broken TCP/IP on MASTER_SITES.
5) General Makefile cleanups.
6) Addition of perlsh to perl5 virtual category.
7) Use PKGNAME to match port's name.
8) Remove unnecessary perl substitution.
PR: 17031
Submitted by: Maintainer
