SF bug #999776, zlib home page wrong

Backport candidate.
diff --git a/Misc/BeOS-setup.py b/Misc/BeOS-setup.py
index c55d27d..8d4b7b6 100644
--- a/Misc/BeOS-setup.py
+++ b/Misc/BeOS-setup.py
@@ -443,7 +443,7 @@
 
         # Andrew Kuchling's zlib module.
         # This require zlib 1.1.3 (or later).
-        # See http://www.cdrom.com/pub/infozip/zlib/
+        # See http://www.gzip.org/zlib/
         if (self.compiler.find_library_file(lib_dirs, 'z')):
             exts.append( Extension('zlib', ['zlibmodule.c'],
                                    libraries = ['z']) )