revert max ui feed title length, tweak truncate_string a bit

classes/feeds.php

@@ -68,7 +68,7 @@ class Feeds extends Handler_Protected {
 
 			$target = "target=\"_blank\"";
 			$reply .= "<a title=\"$last_updated\" $target href=\"$feed_site_url\">".
-				truncate_string($feed_title, 20)."</a>";
+				truncate_string($feed_title, 30)."</a>";
 
 			if ($error) {
 				$error = htmlspecialchars($error);

include/functions.php

@@ -879,7 +879,7 @@
 	}
 
 	function truncate_string($str, $max_len, $suffix = '…') {
-		if (mb_strlen($str, "utf-8") > $max_len - 3) {
+		if (mb_strlen($str, "utf-8") > $max_len) {
 			return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
 		} else {
 			return $str;