[ci skip] Remove references to 'PHP5' from comments
diff --git a/system/core/Security.php b/system/core/Security.php
index 181ace2..4b204ad 100755
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -439,7 +439,7 @@
 
 		/*
 		 * Remove disallowed Javascript in links or img tags
-		 * We used to do some version comparisons and use of stripos for PHP5,
+		 * We used to do some version comparisons and use of stripos(),
 		 * but it is dog slow compared to these simplified non-capturing
 		 * preg_match(), especially if the pattern exists in the string
 		 *