Merge pull request #1 from jdomenechb/exception-output-patch-1

Fix no output when exception is raised

Author: jdomenechb

src/Loop/RequestLoop.php

@@ -108,7 +108,7 @@ public function request(ServerRequestInterface $request)
                 '404: Page not found'
             );
         } catch (\Throwable $e) {
-            $this->consoleOutput->getErrorOutput()->writeln($e->getMessage(), PHP_EOL, $e->getTraceAsString());
+            $this->consoleOutput->getErrorOutput()->writeln(['ERROR: ' . $e->getMessage(), $e->getTraceAsString()]);
 
             return new Response(
                 500,