update doc

Author: cesargb

README.md

@@ -1,8 +1,6 @@
 
 # PHP class to logs rotation
 
-PHP Class to rotate log files
-
 This PHP package allows you to rotate a log file and compress it.
 
 [![tests](https://github.com/cesargb/php-log-rotation/workflows/tests/badge.svg)](https://github.com/cesargb/php-log-rotation/actions)

phpstan.neon.dist

@@ -5,4 +5,4 @@ parameters:
         - tests
 
     # The level 9 is the highest level
-    level: 5
+    level: 6

src/ErrorHandler.php

@@ -3,15 +3,16 @@
 namespace Cesargb\Log;
 
 use Cesargb\Log\Exceptions\RotationFailed;
+use Closure;
 use Throwable;
 
 trait ErrorHandler
 {
-    private $thenCallback = null;
+    private ?Closure $thenCallback = null;
 
-    private $catchCallable = null;
+    private ?Closure $catchCallable = null;
 
-    private $finallyCallback = null;
+    private ?Closure $finallyCallback = null;
 
     private ?string $_filename = null;