Function libgit2_sys::git_treebuilder_insert

pub unsafe extern fn git_treebuilder_insert(out: *mut *const git_tree_entry,
                                            bld: *mut git_treebuilder,
                                            filename: *const c_char,
                                            id: *const git_oid,
                                            filemode: git_filemode_t)
                                            -> c_int