cli: log to error log

Author: jtojnar

src/common.php

@@ -169,7 +169,7 @@
 if ($f3->get('logger_level') === 'NONE') {
     $log->pushHandler(new NullHandler());
 } else {
-    $logger_destination = $f3->get('logger_destination');
+    $logger_destination = in_array(PHP_SAPI, ['cli', 'cli-server'], true) ? 'error_log' : $f3->get('logger_destination');
 
     if (strpos($logger_destination, 'file:') === 0) {
         $handler = new StreamHandler(substr($logger_destination, 5), $f3->get('logger_level'));