spersson/Kup — pull request #9 by elehcim (2013-09-02 13:18:42+00:00)
Title: Remove GIT_REF_LISTALL flag

as described here: https://github.com/libgit2/libgit2/commit/2b562c3a1edf0f521bdb7adf23e524d5a8389b15
Now it should be compatible with libgit2 v0.19.0