minor #17086 CS: use nowdoc instead of heredoc (gharlan)

This PR was merged into the 2.3 branch.

Discussion
----------

CS: use nowdoc instead of heredoc

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | —
| License       | MIT
| Doc PR        | —

if this is accepted, we could add the fixer to symfony level of php-cs-fixer: https://github.com/FriendsOfPHP/PHP-CS-Fixer/pull/1580

Commits
-------

3dca549 use nowdoc instead of heredoc

2 files changed, 3 insertions, 3 deletions

diff --git a/Acl/Dbal/AclProvider.php b/Acl/Dbal/AclProvider.php
index 0ccc19f..bba5824 100644
--- a/Acl/Dbal/AclProvider.php
+++ b/Acl/Dbal/AclProvider.php
@@ -367,7 +367,7 @@ FINDCHILDREN;
      */
     protected function getSelectObjectIdentityIdSql(ObjectIdentityInterface $oid)
     {
-        $query = <<<QUERY
+        $query = <<<'QUERY'
             SELECT o.id
             FROM %s o
             INNER JOIN %s c ON c.id = o.class_id
diff --git a/Acl/Dbal/MutableAclProvider.php b/Acl/Dbal/MutableAclProvider.php
index c62bdd4..074c4a0 100644
--- a/Acl/Dbal/MutableAclProvider.php
+++ b/Acl/Dbal/MutableAclProvider.php
@@ -433,7 +433,7 @@ class MutableAclProvider extends AclProvider implements MutableAclProviderInterf
      */
     protected function getInsertAccessControlEntrySql($classId, $objectIdentityId, $field, $aceOrder, $securityIdentityId, $strategy, $mask, $granting, $auditSuccess, $auditFailure)
     {
-        $query = <<<QUERY
+        $query = <<<'QUERY'
             INSERT INTO %s (
                 class_id,
                 object_identity_id,
@@ -510,7 +510,7 @@ QUERY;
      */
     protected function getInsertObjectIdentitySql($identifier, $classId, $entriesInheriting)
     {
-        $query = <<<QUERY
+        $query = <<<'QUERY'
               INSERT INTO %s (class_id, object_identifier, entries_inheriting)
               VALUES (%d, %s, %s)
 QUERY;