const golang.org/x/sys/unix.FAN_MARK_ONLYDIR

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L1239: 	FAN_MARK_ONLYDIR                            = 0x8

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)