Update ERC-5564: missing necessary arg in computeStealthKey

Merged by EIP-Bot.

ERCS/erc-5564.md

@@ -72,13 +72,15 @@ A recipient MUST be able to compute the private key for a stealth address by cal
 /// @notice Computes the stealth private key for a stealth address.
 /// @param stealthAddress The expected stealth address.
 /// @param ephemeralPubKey The ephemeral public key used to generate the stealth address.
+/// @param viewingKey The recipient's viewing private key.
 /// @param spendingKey The recipient's spending private key.
 /// @return stealthKey The stealth private key corresponding to the stealth address.
 /// @dev The stealth address input is not strictly necessary, but it is included so the method
 /// can validate that the stealth private key was generated correctly.
 function computeStealthKey(
   address stealthAddress,
   bytes memory ephemeralPubKey,
+  bytes memory viewingKey,
   bytes memory spendingKey
 ) external view returns (bytes memory);
 ```