Updated mediawiki/extensions
Project: mediawiki/extensions/Interwiki  b80cb55a9cb31a1c16517474b600704a4bc2e1f5

Really fix "interwiki-legend" message key.

Because it's REALLY EASY TO MIX UP.

Change-Id: I762dbcb45f68f54b0992663c7d470449427d2af8