Initialise array (#10)

Author: mstrelan

src/FinderCommand.php

@@ -33,6 +33,7 @@ protected function execute(InputInterface $input, OutputInterface $output) {
     $bootstrap = $input->getOption('bootstrap-file');
     include_once $bootstrap;
     $testSuites = $input->getArgument('test-suite');
+    $testFilenames = [];
 
     $config = (new Loader())->load($configFile);