One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

- Add LICENSE
- Add NO_ARCH

Approved by:	portmgr blanket

Switch some MASTER_SITES from http/ftp to https.

Also some cleanup of dead entries.

PR:		226203
Submitted by:	Sam H
Sponsored by:	Absolight

${RM} already has -f.

PR:		213570
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

Add a new keywork xmlcatmgr

It simplifies the handling of the XML and SMGL catalog
It brings a big of consistency by always specifying the catalog path absolute
instead of mixing absolute and relative path.
The keyword is also written a PKG_ROOTDIR friendly to simplify cross installing

Reviewed by:	hrs
Differential Revision:	https://reviews.freebsd.org/D6539

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

With hat:	portmgr
Sponsored by:	Absolight

Cleanup plist

textproc/docbook-sgml: explicitly use ${TAR} for extraction

Despite all 8 distribution files being zip archives, the extraction target
is using a tar-specific set of arguments.  USES=zip cannot be used (native
or infozip) so explicitly require ${TAR} for future-proofing reasons.

Approved by:	Infrastructure blanket

Also bump PORTREVISION to have repaired catalogs installed.

Fix catalog generation to unbreak textproc/docbook-utils build.

Missing closing quotes, and docbook-xml-5.0 does not install a
docbook.cat for SGML, so do not list it. Use a shell test to skip the
installation because fmake would otherwise barf (bmake is fine).

Consolidate the docbook ports into -sgml and -xml variants.

Submitted by:	hrs (based on)
Sponsored by:	Absolight