Update to 1.2:

- Properly propagate errors returned by cvs checkout and cvs update.

Problem reported by Nathan Arthur in private mail.  Change OKed by pmc.
Update to 2.6:

- Fix the default configuration file to populate CVSTAG correctly when
  using a CVS/Tag file.
- Ensure that errors from CVS stop execution.

Problem reported by Nathan Arthur in private mail.  Change OKed by pmc.
Note update of shtk to 1.2 and sysbuild to 2.6.
+ attica-0.4.2, automake-1.13.4, calibre-0.9.35, doclifter-2.12,
  electric-9.04, haproxy-1.4.24, milter-manager-1.8.7, ocaml-findlib-1.4,
  phpmyadmin-4.0.4, py-gdata-2.0.18, py-qt5-5.0.0, py-setuptools-0.7.2,
  py-sip-4.14.7, qt4-qscintilla-2.7.2, x264-devel-20130615.
Update to 6.14.6 and make KMS a default-off option.
Still for PR 47935.
Updated x11/xf86-video-ati6 to 6.14.6
try fixing problem seen in clang bulk build (void function returning value)
pkglint cleanup:
use standard dependency patterns
set GNU_CONFIGURE to a value
set USE_LIBTOOL since package installs .la files
Fix build with perl-5.18.
Fix perl interpreter path in installed files. Bump PKGREVISION.
Updated textproc/po4a to 0.23nb11
Fix build with perl-5.18's pod2man.
Set LICENSE.
Remove attempt at making it MAKE_JOBS_SAFE, build fails with various
mysterious errors in that case.
Don't use register variables with Clang/amd64, provide assembler for
fetching/setting SP. Can't use the fast accessor as clisp doesn't align
in the stack correctly in that case. Still fails somewhere in the middle
of the regression tests, but much much farther in.
Use tradcpp with clang as preprocessor.
Server needs the same changes as client to not build the integrated
editline, so move them to Makefile.common.
Add explicit operator << for Commands taking File arguments as the
use depends on the intermediate conversion to string, which is not valid
C++.
Spell -fno-strict-aliasing correctly.