const syscall.shift

4 uses

	syscall (current package)
		syscall_linux.go#L470: 	shift   = 8
		syscall_linux.go#L487: 	return int(w>>shift) & 0xFF
		syscall_linux.go#L501: 	return Signal(w>>shift) & 0xFF
		syscall_linux.go#L508: 	return int(w>>shift) >> 8