os.file.appendMode (field)

5 uses

	os (current package)
		file.go#L223: 	if f.appendMode {
		file.go#L389: 	f.appendMode = flag&O_APPEND != 0
		file_unix.go#L65: 	appendMode  bool                    // whether file is opened for appending
		file_unix.go#L117: 	f.appendMode = flags&syscall.O_APPEND != 0
		zero_copy_linux.go#L57: 	if f.appendMode {