Log Message:
Update to 0.5.6nb2:
- Refill the DESCR file.
- Remove BUILD_USES_MSGFMT; distfile ships with prebuilt .gmo files.
- Do not use GNU make as it's not needed.
- Use BUILDLINK_PREFIX.openldap instead of LOCALBASE to locate openldap.
- Register info file properly and fix a typo in its directory entry so
  that it can be accessed.
- Patch configure instead of configure.ac, so we can drop the build
  dependency on autoconf.
- Add missing dependencies on libiconv and gettext-lib.
- Sort USE_* and include sections alphabetically.
- Remove BUILDLINK_DEPENDS.* version overrides because the respective
  buildlink3.mk files already pull in a newer version.
- Drop all logic to detect the actual gettext-lib version.  This was wrong
  because it relied on the version currently installed (thus having a good
  chance to produce different results between systems), and because it's
  not the way to go.  Instead, simply include gettext-lib's buildlink3.mk
  file, and let the builtin.mk machinery decide what to do.
- Also add the locale files to the PLIST.