minor #28460 Think positive (umpirsky)

This PR was submitted for the master branch but it was merged into the 3.4 branch instead (closes #28460).

Discussion
----------

Think positive

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

No need to invert condition.

Commits
-------

0b43738162 Think positive

src/Symfony/Component/Lock/Lock.php

@@ -69,10 +69,10 @@ final class Lock implements LockInterface, LoggerAwareInterface
     public function acquire($blocking = false)
     {
         try {
-            if (!$blocking) {
-                $this->store->save($this->key);
-            } else {
+            if ($blocking) {
                 $this->store->waitAndSave($this->key);
+            } else {
+                $this->store->save($this->key);
             }
 
             $this->dirty = true;