hide empty content preview

backend.php

@@ -1089,8 +1089,10 @@
 					$content_preview = truncate_string(strip_tags($line["content_preview"]), 
 						101);
 						
+					if ($content_preview) {
 						print "<span class=\"contentPreview\"> - $content_preview</span>";
 					}
+				}
 
 				print "</a>";
 				print "</td>";