[ci skip] style and phpdoc-related changes (rel #1295)
diff --git a/system/core/Output.php b/system/core/Output.php
index 052367e..aa0e05d 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -204,7 +204,8 @@
 	/**
 	 * Set Content Type Header
 	 *
-	 * @param	string	extension of the file we're outputting
+	 * @param	string	$mime_type	extension of the file we're outputting
+	 * @param	string	$charset = NULL
 	 * @return	void
 	 */
 	public function set_content_type($mime_type, $charset = NULL)