gzip: update to 1.10

gzip: update to 1.10

Relevant excerpt from Changelog as per
https://savannah.gnu.org/forum/forum.php?forum_id=9339:

NEWS

* Noteworthy changes in release 1.10 (2018-12-29) [stable]

** Changes in behavior

  Compressed gzip output no longer contains the current time as a
  timestamp when the input is not a regular file.  Instead, the output
  contains a null (zero) timestamp.  This makes gzip's behavior more
  reproducible when used as part of a pipeline.  (As a reminder, even
  regular files will use null timestamps after the year 2106, due to a
  limitation in the gzip format.)

** Bug fixes

  A use of uninitialized memory on some malformed inputs has been fixed.
  [bug present since the beginning]

  A few theoretical race conditions in signal handers have been fixed.
  These bugs most likely do not happen on practical platforms.
  [bugs present since the beginning]

In addition, gzip 1.10 comes with the GNU library patch applied, so
there is no need to carry this file around any more.

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>