188ca77870
Remove the two formats that have a spelled-out month, since applications using this setting are trying to format numeric dates. Do not forcibly set the setting the first time you go into Date & Time -- let the setting remain null if it was null before. Add a choice corresponding to null to the list of format options. It will look like "Normal (12-31-2009)" in the list, and will cause the system to use whatever numeric format the locale calls for. For the other choices, feed them to the locale-aware formatter so they will appear with the punctuation that the locale calls for.