Normalize params: Update Debug.php as well

* Applied the change to debug.php too, changed the names of the vars
4 jobs for 3-normalize-params in 1 minute and 12 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #1151
lint:lint-php5.4

00:00:41

passed #1152
lint:lint-php5.6

00:00:40

passed #1153
lint:lint-php7.0

00:00:39

 
  Codesniffer
passed #1154
codesniffer

00:00:30