Update changelog/13737.feature.rst

Co-authored-by: Zac Hatfield-Dodds <[email protected]>

Author: gomri15

changelog/13737.feature.rst

@@ -1,4 +1,4 @@
 Added the ``--require-unique-paramset-ids`` flag to pytest.
 
 When passed, this flag causes pytest to raise an exception upon detection of non-unique parameter set IDs,
-rather than attempting to generate them automatically.
+rather than automatically modifying the ids to ensure uniqueness.