Initializes a git_merge_file_input with default values. Equivalent to
creating an instance with GIT_MERGE_FILE_INPUT_INIT.
@param opts the git_merge_file_input instance to initialize.
@param version_ the version of the struct; you should pass
GIT_MERGE_FILE_INPUT_VERSION here.
@return Zero on success; -1 on failure.
Initializes a git_merge_file_input with default values. Equivalent to creating an instance with GIT_MERGE_FILE_INPUT_INIT.
@param opts the git_merge_file_input instance to initialize. @param version_ the version of the struct; you should pass GIT_MERGE_FILE_INPUT_VERSION here. @return Zero on success; -1 on failure.