Merge pull request #16180 from Fibonacci747/fix/documentation-fromhex-function-behavior

fix: correct fromHex function documentation

Author: clonker

libsolutil/CommonData.h

@@ -453,7 +453,7 @@ int fromHex(char _i, WhenError _throw);
 
 /// Converts a (printable) ASCII hex string into the corresponding byte stream.
 /// @example fromHex("41626261") == asBytes("Abba")
-/// If _throw = ThrowType::DontThrow, it replaces bad hex characters with 0's, otherwise it will throw an exception.
+/// If _throw = WhenError::DontThrow, it returns an empty bytes array on any validation error, otherwise it will throw an exception.
 bytes fromHex(std::string const& _s, WhenError _throw = WhenError::DontThrow);
 /// Converts byte array to a string containing the same (binary) data. Unless
 /// the byte array happens to contain ASCII data, this won't be printable.