Updated archivers/gcpio to 2.12
-------------------------------
(From NEWS)
Version 2.12 - Sergey Poznyakoff, 2015-09-12

* Improved documentation.
* Manpages are installed by make install.
* New options for copy-out mode:

** --ignore-devno
Store 0 in the device number fields, instead of the actual device
number.

** --renumber-inodes
Renumber inodes when storing them in the archive.

** --device-independent or --reproducible
Create reproducible archives.  This is equivalent to
--ignore-devno --renumber-inodes.

(mef)