Fixed incorrect parenthesis in form_open() function. (#5135)
A few doc typo fixes
diff --git a/user_guide/installation/upgrade_170.html b/user_guide/installation/upgrade_170.html
index d74afff..33897d5 100644
--- a/user_guide/installation/upgrade_170.html
+++ b/user_guide/installation/upgrade_170.html
@@ -3,7 +3,7 @@
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<title>Upgrading from 1.6.3 to 1.6.4 : CodeIgniter User Guide</title>
+<title>Upgrading from 1.6.3 to 1.7.0 : CodeIgniter User Guide</title>
<style type='text/css' media='all'>@import url('../userguide.css');</style>
<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />