Format constructors on a single line

This is for consistency with the rest of the handlers.

src/Monolog/Handler/SlackbotHandler.php

@@ -46,13 +46,8 @@ class SlackbotHandler extends AbstractProcessingHandler
      * @param  int    $level     The minimum logging level at which this handler will be triggered
      * @param  bool   $bubble    Whether the messages that are handled can bubble up the stack or not
      */
-    public function __construct(
-        $slackTeam,
-        $token,
-        $channel,
-        $level = Logger::CRITICAL,
-        $bubble = true
-    ) {
+    public function __construct($slackTeam, $token, $channel, $level = Logger::CRITICAL, $bubble = true)
+    {
         parent::__construct($level, $bubble);
 
         $this->slackTeam = $slackTeam;