fix warning if no CSS is present in data

diff --git a/framework/Text_Filter_Csstidy/lib/Horde/Text/Filter/Csstidy/class.csstidy.php b/framework/Text_Filter_Csstidy/lib/Horde/Text/Filter/Csstidy/class.csstidy.php
index c074a7a..101d8c7 100644 (file)
--- a/framework/Text_Filter_Csstidy/lib/Horde/Text/Filter/Csstidy/class.csstidy.php
+++ b/framework/Text_Filter_Csstidy/lib/Horde/Text/Filter/Csstidy/class.csstidy.php
@@ -993,7 +993,9 @@ class csstidy {
             return '';
         }
 
-        $cssarray = reset($this->css);
+        $cssarray = empty($this->css)
+            ? array()
+            : reset($this->css);
         $style = '';
 
         foreach (array_keys($cssarray) as $val) {