Issue #13883: PYTHONCASEOK also works with OS X.

diff --cc Doc/using/cmdline.rst
index d9cf954ce192e1ba6be58a96d5fbf710bd0aa1aa,c386fb41ee0306429cd599541ca3298b8ad40d26..8a02b764eac84596a9130f4d12e51aa5fe69edf1
--- 1/Doc/using/cmdline.rst
--- 2/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@@ -450,7 -448,7 +450,7 @@@ These environment variables influence P
  .. envvar:: PYTHONCASEOK
  
     If this is set, Python ignores case in :keyword:`import` statements.  This
-    only works on Windows.
 -   only works on Windows, OS X, and OS/2.
++   only works on Windows and OS X.
  
  
  .. envvar:: PYTHONDONTWRITEBYTECODE

diff --cc Misc/NEWS
index 2dab0a1c368ec3f2bc7dc8fe883c46db6489b1a9,ba60758780ffbde446c726bfbfaeff62456a5623..a970dc5c12c42066301b22b61645b2e8e4e9c7ff
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -2117,17 -1358,6 +2117,19 @@@ C-AP
  Documentation
  -------------
  
++- Issue #13883: PYTHONCASEOK also works on OS X.
++
 +- Issue #12949: Document the kwonlyargcount argument for the PyCode_New
 +  C API function.
 +
 +- Issue #13513: Fix io.IOBase documentation to correctly link to the
 +  io.IOBase.readline method instead of the readline module.
 +
 +- Issue #13237: Reorganise subprocess documentation to emphasise convenience
 +  functions and the most commonly needed arguments to Popen.
 +
 +- Issue #13141: Demonstrate recommended style for socketserver examples.
 +
  - Issue #11818: Fix tempfile examples for Python 3.