Silence DeprecationWarnings from uses of has_key and <> in plat-mac.
diff --git a/Lib/plat-mac/bundlebuilder.py b/Lib/plat-mac/bundlebuilder.py
index d13403c..ce7ce45 100755
--- a/Lib/plat-mac/bundlebuilder.py
+++ b/Lib/plat-mac/bundlebuilder.py
@@ -489,7 +489,7 @@
                 if self.standalone or self.semi_standalone:
                     self.includeModules.append("argvemulator")
                     self.includeModules.append("os")
-                if not self.plist.has_key("CFBundleDocumentTypes"):
+                if "CFBundleDocumentTypes" not in self.plist:
                     self.plist["CFBundleDocumentTypes"] = [
                         { "CFBundleTypeOSTypes" : [
                             "****",