Function gio_sys::g_data_input_stream_read_line_utf8

pub unsafe extern fn g_data_input_stream_read_line_utf8(stream: *mut GDataInputStream,
                                                        length: *mut size_t,
                                                        cancellable: *mut GCancellable,
                                                        error: *mut *mut GError)
                                                        -> *mut c_char