MSYS: Update tar to a version that can fully handle extended pax headers
This gets rid of this annoying warning when creating releases:
tar: pax_global_header: Unknown file type 'g', extracted as normal file
The previous tar version was 1.13.19, and it seems the minimum required tar
version to handle pax headers would be 1.14, but we are using the most recent
version 1.22 available from here:
http://sourceforge.net/projects/mingw/files/MSYS%20tar/
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>