Change logs for gzip source package in Xenial

gzip (1.6-4ubuntu1) vivid; urgency=medium

  * Merge from Debian unstable (lp: #1385793).  Remaining changes:
    - debian/{control,rules}: Remove the Win32 build and mingw64
      build-dependency, since mingw is in universe, and will remain so for
      the forseeable future.
    - Added autopkgtest tests

gzip (1.6-4) unstable; urgency=low

  * fix typo in man page, closes: #738546
  * specify /bin/sh as shell for wrapper scripts, closes: #762915
 -- Jackson Doak <email address hidden>   Sun, 26 Oct 2014 13:16:56 +1100