Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  17c52bab1b26b82c8222e6614c4178aea7461366

Add a missing /*_*/ prefix on a CREATE INDEX

I don't know what it is, but this is the only CREATE INDEX missing it
(untested random pattern-matching!).
Also remove trailing whitespace.

Bug: 54076
Change-Id: I21f9b3268cff68fd16e9187cf5263198cbb897be