Issue #21538: The plistlib module now supports loading of binary plist files

when reference or offset size is not a power of two.

diff --cc Misc/NEWS
index 53abb67ede1b44cc2eaa5f1720ce313e6bae6d47,6bee579ba983295cb4d35504e583c3c9db3e6dc7..dd6b8a31330e28d8fb36d03ff8eb0d1b8139cb92
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -89,51 -119,6 +89,54 @@@ Core and Builtin
  Library
  -------
  
++- Issue #21538: The plistlib module now supports loading of binary plist files
++  when reference or offset size is not a power of two.
++
 +- Issue #21455: Add a default backlog to socket.listen().
 +
 +- Issue #21525: Most Tkinter methods which accepted tuples now accept lists too.
 +
 +- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial
 +  shape.
 +
 +- Issue #20826: Optimize ipaddress.collapse_addresses().
 +
 +- Issue #21487: Optimize ipaddress.summarize_address_range() and
 +  ipaddress.{IPv4Network,IPv6Network}.subnets().
 +
 +- Issue #21486: Optimize parsing of netmasks in ipaddress.IPv4Network and
 +  ipaddress.IPv6Network.
 +
 +- Issue #13916: Disallowed the surrogatepass error handler for non UTF-*
 +  encodings.
 +
 +- Issue #20998: Fixed re.fullmatch() of repeated single character pattern
 +  with ignore case.  Original patch by Matthew Barnett.
 +
 +- Issue #21075: fileinput.FileInput now reads bytes from standard stream if
 +  binary mode is specified.  Patch by Sam Kimbrel.
 +
 +- Issue #19775: Add a samefile() method to pathlib Path objects.  Initial
 +  patch by Vajrasky Kok.
 +
 +- Issue #21398: Fix an unicode error in the pydoc pager when the documentation
 +  contains characters not encodable to the stdout encoding.
 +
 +- Issue #16531: ipaddress.IPv4Network and ipaddress.IPv6Network now accept
 +  an (address, netmask) tuple argument, so as to easily construct network
 +  objects from existing addresses.
 +
 +- Issue #21156: importlib.abc.InspectLoader.source_to_code() is now a
 +  staticmethod.
 +
 +- Issue #21424: Simplified and optimized heaqp.nlargest() and nmsmallest()
 +  to make fewer tuple comparisons.
 +
 +- Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a
 +  flush() on the underlying binary stream.  Patch by akira.
 +
 +- Issue #18314: Unlink now removes junctions on Windows. Patch by Kim Gräsman
 +
  - Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0.
    In porting to Argument Clinic, the first two arguments were reversed.