Fix comment for Var

Author: biboudis

library/src-bootstrapped/scala/quoted/util/Var.scala

@@ -17,21 +17,21 @@ object Var {
   /** Create a variable initialized with `init` and used in `body`.
    *  `body` recieves a `Var[T]` argument which exposes `get` and `update`.
    *
-   *  `var`('(7)) {
+   *  Var('(7)) {
    *    x => '{
-   *      while(0 < ~x)
-   *        ~x.update('(~x - 1))
-   *      ~x.get
+   *      while(0 < $x.get)
+   *        $x.update('($x.get - 1))
+   *      $x.get
    *    }
    *  }
    *
-   *  will create the equivalent of
+   *  will create the equivalent of:
    *
-   *  '{
+   *  {
    *    var x = 7
    *    while (0 < x)
    *      x = x - 1
-   *     x
+   *    x
    *  }
    */
   def apply[T: Type, U: Type](init: Expr[T])(body: Var[T] => Expr[U]) given QuoteContext: Expr[U] = '{