Prepare release of 0.29.31.

CHANGES.rst

@@ -2,9 +2,16 @@
 Cython Changelog
 ================
 
-0.29.31 (2022-??-??)
+0.29.31 (2022-07-22)
 ====================
 
+Features added
+--------------
+
+* A new argument ``--module-name`` was added to the ``cython`` command to
+  provide the (one) exact target module name from the command line.
+  Patch by Matthew Brett and h-vetinari.  (Github issue #4906)
+
 Bugs fixed
 ----------
 

Cython/Shadow.py

 # cython.* namespace for pure mode.
 from __future__ import absolute_import
 
-__version__ = "0.29.30"
+__version__ = "0.29.31"
 
 try:
     from __builtin__ import basestring