Fix SF #1001053, wave.open() with unicode filename fails

Backport candidate.
diff --git a/Misc/NEWS b/Misc/NEWS
index 361a276..d142c3d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -46,6 +46,8 @@
 Library
 -------
 
+- Bug #1001053.  wave.open() now accepts unicode filenames.
+
 - gzip.GzipFile has a new fileno() method, to retrieve the handle of the
   underlying file object (provided it has a fileno() method).  This is
   needed if you want to use os.fsync() on a GzipFile.