const io.SeekCurrent

4 uses

	io (current package)
		io.go#L23: 	SeekCurrent = 1 // seek relative to the current offset
		io.go#L514: 	case SeekCurrent:

	bytes
		reader.go#L123: 	case io.SeekCurrent:

	strings
		reader.go#L122: 	case io.SeekCurrent: