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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux_amd64.go#L669: 	ESOCKTNOSUPPORT = syscall.Errno(0x5e)

The pages are generated with Golds v0.8.4. (GOOS=linux GOARCH=amd64)