Remove a space :)
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php
index 4a0791a..7bec807 100644
--- a/system/helpers/date_helper.php
+++ b/system/helpers/date_helper.php
@@ -745,7 +745,7 @@
* it doesn't always handle properly timezones, when timestamps are passed
* directly to its constructor. Neither of the following gave proper results:
*
- * new DateTime('<timestamp>')
+ * new DateTime('<timestamp>')
* new DateTime('<timestamp>', '<timezone>')
*
* --- available in PHP 5.3: