Feature summary:
Alias Special:LockDatabase to Special:LockDB, and Alias Special:UnlockDatabase to Special:UnlockDB.
Use case(s):
A user may half-remember the command and type the full version rather than the short version.
Good first task
There's only a minor change required here to languages / messages / MessagesEn.php to add aliases. It's literally a change to two lines of code to add them to the array:
'Lockdb' => [ 'LockDB' ], 'Unlockdb' => [ 'UnlockDB' ],
Currently at lines 483 and 550 to:
'Lockdb' => [ 'LockDB', 'LockDatabase' ], 'Unlockdb' => [ 'UnlockDB', 'UnlockDatabase' ],