Update tests/lib/BinaryFinderTest.php

Co-authored-by: Daniel <mail@danielkesselberg.de>
Signed-off-by: Reno Reckling <e-github@wthack.de>

tests/lib/BinaryFinderTest.php

@@ -20,7 +20,7 @@ class BinaryFinderTest extends TestCase {
 	private $oldEnv;
 
 	protected function setUp(): void {
-		$this->oldEnv = getenv("PATH");
+		$this->oldEnv = getenv('PATH');
 		// BinaryFinder always includes the "PATH" environment variable into the search path,
 		// which we want to avoid in this test because they are not usually found in webserver
 		// deployments.