Updated mediawiki/extensions
Project: mediawiki/extensions/Petition  fdac99adae18528b8d0589990b5e9a53bfcd37f5

Remove non-existent column from Special:PetitionData download

The pt_pagetitle column was removed from the database in If64de462,
but reference to it slipped through into the download function in
Special:PetitionData. This patch removes it from there, unbreaking
the downloads.

Change-Id: I0ae4850ee66b6563ef55f0b8868bdc165b6f3014