Updated mediawiki/extensions
Project: mediawiki/extensions/SyntaxHighlight_GeSHi  5cfbe978e1b6fad80e1d6bb9627e25cd9568f70e

Fix PHP Notice in Special:Version

Follow-up to broken revert Ic724f6fe1b1c

Change-Id: I61d19394997cc3499fa084d1b3dc8a7706a499d1