[tempo] Fix a string extraction with old gettext

[Piotr Drąg <piotrdrag src gnome org>]

commit 5938912034369e7b02a1d233ae67d76acf01c246
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Oct 3 17:43:45 2013 +0200

    Fix a string extraction with old gettext

 tempo/mainWindow.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tempo/mainWindow.js b/tempo/mainWindow.js
index 58ba729..6f9a0a3 100644
--- a/tempo/mainWindow.js
+++ b/tempo/mainWindow.js
@@ -380,7 +380,7 @@ MainWindow.prototype = {
             let day;
 
             if (i == 0)
-                day = _('Today');
+                day = _("Today");
             else
                 day = forecast day_of_week  data toString();