PHPstan analysis.

src/CommandShow.php

@@ -27,6 +27,7 @@ class CommandShow extends Command
             $config = Yaml::parseFile($input->getArgument('config'));
         } catch (ParseException $e) {
             $output->writeln('Unable to parse the YAML string: '. $e->getMessage());
+            return Command::FAILURE;
         }
         $table = new Table($output);
         $table