const net/http.socksAuthMethodUsernamePassword

3 uses

	net/http (current package)
		socks_bundle.go#L233: 	socksAuthMethodUsernamePassword    socksAuthMethod = 0x02 // use username/password
		socks_bundle.go#L447: 	case socksAuthMethodUsernamePassword:
		transport.go#L1630: 				socksAuthMethodUsernamePassword,