Change logs for optipng source package in Hirsute

optipng (0.7.7-1) unstable; urgency=medium

  * New upstream release
  * Update Vcs-Git and Vcs-Browser with new repository on salsa.debian.org
  * Fix debian/copyright Format URI to use https
  * Switch debhelper compatibility to 12
  * Bump Standards-Version to 4.3.0
  * Add debian/upstream/metadata

 -- Emmanuel Bouthenot <email address hidden>  Sat, 16 Feb 2019 01:14:15 +0000