Update Optimizer.scala

Author: pzzs

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala

@@ -292,7 +292,7 @@ object ConstantFolding extends Rule[LogicalPlan] {
 
       // Fold expressions that are foldable.
       case e if e.foldable => Literal.create(e.eval(null), e.dataType)
-      
+
       // Fold "literal in (item1, item2, ..., literal, ...)" into true directly.
       case In(Literal(v, _), list) if list.exists {
           case Literal(candidate, _) if candidate == v => true