Tidy up dates further

base/ltkeys.dtx

@@ -294,7 +294,7 @@
 % \begin{macro}{\@@_options_class:nnn}
 % \changes{v1.0h}{2022/06/20}{New function}
 % \changes{v1.0i}{2022/07/05}{Correct naming of raw class options storage}
-% \changes{v1.0l}{2022/10/20}{Correct handling of unused option list}
+% \changes{v1.0l}{2022/10/22}{Correct handling of unused option list}
 %   For classes, each option (stripped of any content after |=|)
 %   is checked for existence as a key. If found, the option is added to
 %   the combined list for processing. On the other hand, unused options