References: syscall.RTM_NR

const syscall.RTM_NR_MSGTYPES

one use

	syscall (current package)
		zerrors_linux_amd64.go#L881: 	RTM_NR_MSGTYPES                  = 0x40

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