Updated mediawiki/extensions
Project: mediawiki/extensions/Scribunto  e66ccb89b4b48f0bc70a38ecbd1845cd41339c8c

Test for leaked global variables

It's easy to forget a 'local' somewhere and accidentally leak a global
variable. Add a unit test to catch that.

Change-Id: I3a8dda22f108d88039f9562a1da7a739850bb14b