Fix up php syntax that accidentally became part of a string literal

Fix up php syntax that accidentally became part of a string literal

Follows-up d15f1cc5e1d6db78.

Previous output:
> 474 pages in the MediaWiki namespace ' .
>                       'override messages.
> 4 pages are equal to the default message ' .
>                       '(+ 0 talk pages).

Change-Id: I6104f716f7dc32d638a2f5a7c37c3a507efad7dd