Fix accidental syntax error introduced in Fetcher, a=chris

diff --git a/src/executables/Fetcher.php b/src/executables/Fetcher.php
index 6164c600e..5e12b6271 100755
--- a/src/executables/Fetcher.php
+++ b/src/executables/Fetcher.php
@@ -2928,7 +2928,7 @@ class Fetcher implements CrawlConstants
                 }
                 if (empty($site[self::LANG])) {
                     $lang = L\guessLocaleFromString(
-                        $site[self::DESCRIPTION]), C\DEFAULT_LOCALE);
+                        $site[self::DESCRIPTION], C\DEFAULT_LOCALE);
                 } else {
                     $lang = $site[self::LANG];
                 }