docs: add missing message change to changelog

kenjis · kenjis · commit 42970f1a9efc · 2023-09-25T05:45:48.000+09:00
diff --git a/user_guide_src/source/changelogs/v4.4.0.rst b/user_guide_src/source/changelogs/v4.4.0.rst
@@ -277,6 +277,7 @@ Others
 Message Changes
 ***************
 
+- Added ``Core.invalidDirectory`` error message.
 - Improved ``HTTP.invalidHTTPProtocol`` error message.
 
 Changes
