revert phpdoc change

diff --git a/src/Core/Logger.php b/src/Core/Logger.php
index 19e4d28d74aa176ce44d1de4fd344e7844b8939a..277a0916417aa562bf260b7f62dad1e7a9c626ef 100644 (file)
--- a/src/Core/Logger.php
+++ b/src/Core/Logger.php
@@ -105,7 +105,7 @@ class Logger extends BaseObject
         * Mapping a legacy level to the PSR-3 compliant levels
         * @see https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md#5-psrlogloglevel
         *
-        * @param mixed $level the level to be mapped
+        * @param string $level the level to be mapped
         *
         * @return string the PSR-3 compliant level
         */