Updated mediawiki/extensions
Project: mediawiki/extensions/examples  38ca3f1339087005904e33f9b8d0ec7e234d79a5

Use __DIR__ instead of dirname( __FILE__ )
A description!

Newline
Closes https://github.com/wikimedia/mediawiki-extensions-examples/pull/2

Change-Id: Ie9145196476a1bb43c1a0611c5c424b56ea3655d