Manual:$wgMaintenanceScripts

Maintenance scripts setting: $wgMaintenanceScripts
Array for extensions to register their maintenance scripts with the system.
Introduced in version:1.16.0 (r54225)
Removed in version:1.23.0 (Gerrit change 112627; git #5e3229b1)
Allowed values:(associative array)
Default value:array()

Details

Array for extensions to register their maintenance scripts with the system. The key is the name of the class and the value is the full path to the file.

This feature was removed because it never did anything.