Log Message:
pkgtools/pkglint: update to 5.7.14

Changes since 5.7.13:

- Removed the -Cextra command line option since it didn't produce useful
  warnings.

- Removed unwarranted warnings about _WRAP_EXTRA_ARGS.CC being used in
  packages.

- Cleaned up the canonical order of variables in package Makefiles.

- Added a few commands to those that cannot fail, to reduce the number of
  "at the left of the | operator" in shell programs.

- Fixed warnings about "-ggdb" being an unknown shell command.

- Reduced number of warnings about lists being used where a single value
  is expected.

- Replaced unreliable check for invalid CFLAGS and LDFLAGS with a more
  practical check.

- Renamed "RCS tag" to "CVS tag" to make the diagnostics \ 
more modern.

- Added warning when PKGNAME or PKGVERSION is used in MASTER_SITES.

- Reworded warning for missing or superfluous PLIST files.

- Lots of other detail changes, refactorings and automatic tests.