Manual:$wgDebugRawPage

Debug: $wgDebugRawPage
If false, 'action=raw' and load.php hits will not result in debug output.
Introduced in version:1.4.0
Removed in version:still in use
Allowed values:(boolean)
Default value:false

Details edit

If false, 'action=raw' and load.php hits will not result in debug output. This avoids overlapping debug entries.