That restores the pre-9.1 functionality of determining the timezone on postmaster start. As has been pointed out, their new stuff is more useful if you're shipping instances to the farthest reaches of the planet (We've only got clients in North America at the moment). You will undoubtedly need to make some modifications to patch with 9.3, but I've got hundreds of 9.2 instances in the field now that, well, just work.
Thanks for sharing! So that means need to build the database all over again for both windows and linux. Actually have been using binaries and utilizing them for creating database.