Added NEWS entry, plus:

Merged revisions 59925 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk/Modules/_ctypes

........
  r59925 | thomas.heller | 2008-01-11 20:34:06 +0100 (Fr, 11 Jan 2008) | 5 lines

  Raise an error instead of crashing with a segfault when a NULL
  function pointer is called.

  Will backport to release25-maint.
........
diff --git a/Misc/NEWS b/Misc/NEWS
index 47b3c5a..1e742fb 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
 Core and builtins
 -----------------
 
+- Prevent a segfault when a ctypes NULL function pointer is called.
+
 - Bug #1517: Possible segfault in lookup().
 
 - Issue #1638: %zd configure test fails on Linux.