Removed NOW() from QueryBuilder usage examples

lib/Doctrine/DBAL/Query/QueryBuilder.php

@@ -552,9 +552,9 @@ class QueryBuilder
      *
      * <code>
      *     $qb = $conn->createQueryBuilder()
-     *         ->update('users', 'u')
-     *         ->set('u.last_login', 'NOW()')
-     *         ->where('u.id = ?');
+     *         ->update('counters', 'c')
+     *         ->set('c.value', 'c.value + 1')
+     *         ->where('c.id = ?');
      * </code>
      *
      * @param string $update The table whose rows are subject to the update.
@@ -745,9 +745,9 @@ class QueryBuilder
      *
      * <code>
      *     $qb = $conn->createQueryBuilder()
-     *         ->update('users', 'u')
-     *         ->set('u.last_login', 'NOW()')
-     *         ->where('u.id = ?');
+     *         ->update('counters', 'c')
+     *         ->set('c.value', 'c.value + 1')
+     *         ->where('c.id = ?');
      * </code>
      *
      * @param string $key   The column to set.
@@ -766,19 +766,19 @@ class QueryBuilder
      *
      * <code>
      *     $qb = $conn->createQueryBuilder()
-     *         ->select('u.name')
-     *         ->from('users', 'u')
-     *         ->where('u.id = ?');
+     *         ->select('c.value')
+     *         ->from('counters', 'c')
+     *         ->where('c.id = ?');
      *
      *     // You can optionally programatically build and/or expressions
      *     $qb = $conn->createQueryBuilder();
      *
      *     $or = $qb->expr()->orx();
-     *     $or->add($qb->expr()->eq('u.id', 1));
-     *     $or->add($qb->expr()->eq('u.id', 2));
+     *     $or->add($qb->expr()->eq('c.id', 1));
+     *     $or->add($qb->expr()->eq('c.id', 2));
      *
-     *     $qb->update('users', 'u')
-     *         ->set('u.last_login', 'NOW()')
+     *     $qb->update('counters', 'c')
+     *         ->set('c.value', 'c.value + 1')
      *         ->where($or);
      * </code>
      *