Remove # $FreeBSD$ from Makefiles.

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

Fix ports that confused the meaning of WRKDIR and WRKSRC.

PR:		204056
Submitted by:	mat
Reviewed by:	bapt
Sponsored by:	Absolight
Differential Revision:	https://reviews.freebsd.org/D2735

Un-break build:
Distfiles are fetchable again after r390758

MASTER_SITES cleanup.

- Replace ${MASTER_SITE_FOO} with FOO.
- Merge MASTER_SITE_SUBDIR into MASTER_SITES when possible. (This means 99.9%
  of the time.)
- Remove occurrences of MASTER_SITE_LOCAL when no subdirectory was present and
  no hint of what it should be was present.
- Fix some logic.
- And generally, make things more simple and easy to understand.

While there, add magic values to the FESTIVAL, GENTOO, GIMP, GNUPG, QT and
SAMBA macros.

Also, replace some EXTRACT_SUFX occurences with USES=tar:*.

Checked by:	make fetch-urlall-list
With hat:	portmgr
Sponsored by:	Absolight

Remove dead COMP_SOURCES master sites
Mark as broken ports using it

Unbreak

Rename sysutils/ patch-xy patches to reflect the files they modify.

- Fix build [1]
- Support STAGEDIR

PR:	ports/183023 [1]
Submitted by:	Stephen Roznowski <sjroz@verizon.net> (maintainer)

Add NO_STAGE all over the place in preparation for the staging support (cat:
sysutils)

- Get Rid MD5 support

Update maintainer's email address.  (Old one now bounces.)

PR:             ports/144412 (partial)

- Pass maintainership of these ports to submitter
- Pet portlint

PR:             ports/98100
Submitted by:   Stephen J. Roznowski <sjr at comcast.net>

- Add SHA256

Use ALL_TARGET

sharutils is an EXTRACT_DEPENDS, not a BUILD_DEPENDS

The gshar+gunshar port is renamed to ports/archivers/sharutils.

PR:     64443

SIZEify.

Use PLIST_FILES.

Reviewed by:    marcus

De-pkg-comment.

Convert category sysutils to new layout.