Merge pull request #4638 from kasimtan/phpdoc_fixes

[ci skip] Fixed PHPDoc parameter name and type discrepancies
diff --git a/system/core/Output.php b/system/core/Output.php
index ec9c21b..06ff101 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -285,7 +285,7 @@
 	/**
 	 * Get Header
 	 *
-	 * @param	string	$header_name
+	 * @param	string	$header
 	 * @return	string
 	 */
 	public function get_header($header)