Updated mediawiki/extensions
Project: mediawiki/extensions/Math  e1343c3f87e066d344a397e710db44ae025c6570

Fix globals in strict mode

I didn't really intend to make this strict yet, but since I did,
better make it work

Follow up to: I679246089ec485678088ff08f3a46d8b74a262c5
Change-Id: Ic6180b3188d46ce92e0547b0fbb6c333906c49f6