tree 618192f457623440fdcfe332da64b75b5f117b5c
parent 987f565917ed92094184384eb61c38d17e9e47f5
author Patrick Steinhardt <ps@pks.im> 1491392829 +0200
committer Patrick Steinhardt <ps@pks.im> 1491393038 +0200

repository: get worktree HEAD via `git_reference__read_head`

The functions `git_repository_head_for_worktree` and
`git_repository_detached_head_for_worktree` both implement their
own logic to read the HEAD reference file. Use the new function
`git_reference__read_head` instead to unify the code paths.