const io.SeekEnd

5 uses

	io (current package)
		io.go#L24: 	SeekEnd     = 2 // seek relative to the end
		io.go#L532: 	case SeekEnd:

	bytes
		reader.go#L124: 	case io.SeekEnd:

	net/http
		fs.go#L196: 		size, err := content.Seek(0, io.SeekEnd)

	strings
		reader.go#L124: 	case io.SeekEnd: