Initializes a git_merge_file_options with default values. Equivalent to creating an instance with GIT_MERGE_FILE_OPTIONS_INIT.
git_merge_file_options
the git_merge_file_options instance to initialize.
the version of the struct; you should pass GIT_MERGE_FILE_OPTIONS_VERSION here.
GIT_MERGE_FILE_OPTIONS_VERSION
Zero on success; -1 on failure.