Record backport of string.py patch and add credit to NEWS

diff --cc Misc/NEWS
index b391f2326b5fc6f0e5e6297e40d33be885210620,419b0d5dcc0d5a7a6b1395ca0ed1b41770c197b2..1de6111a2e9132d174fb49299497db40cf3ffb7a
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -237,8 -130,6 +237,9 @@@ Test
  
  - Issue #11554: Reactivated test_email_codecs.
  
- - Issue #11505: improves test coverage of string.py
++- Issue #11505: improves test coverage of string.py. Patch by Alicia
++  Arlen
 +
  - Issue #11490: test_subprocess:test_leaking_fds_on_error no longer gives a
    false positive if the last directory in the path is inaccessible.