* Values can be one of client, im, custom, gd, imext, or an array
* of object, method-name to call that specific method.
*
- * If specifying a custom scaler command with array( Obj, method ),
+ * If specifying a custom scaler command with [ Obj, method ],
* the method in question should take 2 parameters, a File object,
* and a $scalerParams array with various options (See doTransform
* for what is in $scalerParams). On error it should return a