Update indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguag…

…e/expressions/Expression.java

Co-authored-by: Geir Storli <[email protected]>

indexinglanguage/src/main/java/com/yahoo/vespa/indexinglanguage/expressions/Expression.java

@@ -37,7 +37,7 @@ protected Expression(DataType inputType) {
 
     /**
      * Returns an expression where the children of this has been converted using the given converter.
-     * This defauløt implementation returns this as it has no children.
+     * This default implementation returns this as it has no children.
      */
     public Expression convertChildren(ExpressionConverter converter) { return this; }