const github.com/refraction-networking/utls/dicttls.TLS_KRB5_EXPORT_WITH_RC4_40_SHA

one use

	github.com/refraction-networking/utls/dicttls (current package)
		cipher_suites.go#L46: 	TLS_KRB5_EXPORT_WITH_RC4_40_SHA       uint16 = 0x0028