Kanboard requires at least PHP 5.6 now

vendor/symfony/console/Output/Output.php

@@ -33,8 +33,6 @@ abstract class Output implements OutputInterface
     private $formatter;
 
     /**
-     * Constructor.
-     *
      * @param int                           $verbosity The verbosity level (one of the VERBOSITY constants in OutputInterface)
      * @param bool                          $decorated Whether to decorate messages
      * @param OutputFormatterInterface|null $formatter Output formatter instance (null to use default OutputFormatter)
@@ -94,21 +92,33 @@ abstract class Output implements OutputInterface
         return $this->verbosity;
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function isQuiet()
     {
         return self::VERBOSITY_QUIET === $this->verbosity;
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function isVerbose()
     {
         return self::VERBOSITY_VERBOSE <= $this->verbosity;
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function isVeryVerbose()
     {
         return self::VERBOSITY_VERY_VERBOSE <= $this->verbosity;
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function isDebug()
     {
         return self::VERBOSITY_DEBUG <= $this->verbosity;