- update to 2.1.5:
* This is a hotfix release, fixing an issue where certain
applications would fail with a checksum error during inflate
(decompression).
* Fix bug with Z_FINISH handling with no window. #1602
* This was detected by libgit2 unit tests Issue #1600
* Added unit test for inflate with Z_FINISH and no window #1603
* Fix CMake handling of CMAKE_INSTALL_INCLUDEDIR #1593
* Fix pkgconfig support for WITH_GZFILEOP #1595 #1598
* Github Actions update #1590
* Readme Update #1594