Backport improved test coverage for string.py
diff --git a/Misc/NEWS b/Misc/NEWS
index b44650c..419b0d5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -122,6 +122,9 @@
 Tests
 -----
 
+- Issue #11505: improves test coverage of string.py. Patch by Alicia
+  Arlen.
+
 - Issue #11548: Improve test coverage of the shutil module. Patch by
   Evan Dandrea.