- [1] Do not link liblockfile when MAILUTILS option is off.  Users who want
  mail functionality should turn on the MAILUTILS option.  See PR 227799.

- [2] Create a link under exec_directory pointing to
  ${PREFIX}/bin/movemail.  See upstream bug https://bugs.gnu.org/31737 and
  PR 228833.

- Based on user feedback, change the package name for the nox flavor of
  editors/emacs-devel from emacs-devel_nox to emacs-devel-nox.  The
  original motivation for naming the package emacs-devel_nox was so that
  PKGNAMESUFFIX would match the flavor names for USES=emacs ports and
  flavor names cannot contain '-'.

- Remove patches that are no longer necessary.  The patch
  emacs-devel/files/patch-configure.ac is no longer necessary because 10.3,
  which included an old version of texinfo in base, is EOL.  The lldb-gud
  patch is no longer necessary because the LLDB option has been removed.

- Update editors/emacs-devel to a newer commit on the upstream master
  branch.

- Customize COMMENT for nox flavor of editors/emacs-devel.

PR:		227799 [1], 228833 [2]
Submitted by:	yasu@utahime.org [1], bengta@sics.se [2]
Approved by:	ashish
Differential Revision:	https://reviews.freebsd.org/D15728