Per r70755 commit summary.
See also:
[0] http://toolserver.org/~krinkle/wikimedia-svn-search/view.php?id=70&hash=1406e375d3b90612758440233d3876e9
[1] http://toolserver.org/~krinkle/wikimedia-svn-search/view.php?id=71&hash=8beb764e582fcd82017fb441505d9c0
Version: unspecified
Severity: minor
(In reply to comment #1)
As long as its consistent within an extension, does it really matter?
Yep, It's not that big a deal (lowering priority). But to avoid confusion new extensions should follow the Conventions[0] and existing extensions made consistent.
[0] http://www.mediawiki.org/?title=Manual:Coding_conventions&diff=342404#Naming
Please do not change any existing global variable names. It's not worth breaking backwards compatibility.
New extensions should follow the conventions, but you can't file a bug against an extension that hasn't been written yet.
Certainly (I haven't looked), if it's not well documented that it "should" or is more "preferred" to be written like this, that is worth addressing.
Yay, bug 1...