Use auth_error

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@792 7c3ca157-0c34-0410-bff1-cbf682f78f5c

editor/include/auth.inc.php

@@ -1,2 +1,11 @@
 <?php
-$dbh = connect(); //! process errors
+function auth_error($exception = null) {
+	page_header(lang('Login'), htmlspecialchars(lang('Invalid credentials.'), null));
+	page_footer("auth");
+}
+
+$dbh = connect();
+if (is_string($dbh)) {
+	auth_error();
+	exit;
+}