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

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L147: 	FILE_DEDUPE_RANGE_SAME       = 0x0

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)