Fix CS error.

tests/TestCase/Http/ResponseTest.php

@@ -2843,7 +2843,7 @@ class ResponseTest extends TestCase
     public function testWithStatusInvalid()
     {
         $this->expectException(\InvalidArgumentException::class);
-        $this-> expectExceptionMessage('Invalid status code: 1001. Use a valid HTTP status code in range 1xx - 5xx.');
+        $this->expectExceptionMessage('Invalid status code: 1001. Use a valid HTTP status code in range 1xx - 5xx.');
         $response = new Response();
         $response->withStatus(1001);
     }