Initializes a git_worktree_add_options with default vaules. Equivalent to creating an instance with GIT_WORKTREE_ADD_OPTIONS_INIT.
git_worktree_add_options
the struct to initialize
Verison of struct; pass GIT_WORKTREE_ADD_OPTIONS_VERSION
GIT_WORKTREE_ADD_OPTIONS_VERSION
Zero on success; -1 on failure.