Updated mediawiki/extensions
Project: mediawiki/extensions/ExtensionDistributor  bf42d07e213ff4ed93f90f8169ec16e4d67bc364

Do not use h2 for a very very long message

Message 'extdist-choose-version' has 3 lines -> it is not a header
Use normal wikimessage instead

Change-Id: I5c7ddc30b8bf56fb60a3e4486b61e820c2084562