[zenity] Fix broken markup in Catalan help translation

[Andre Klapper <aklapper src gnome org>]

commit 1faa1ab1824f0426e00f4096332f30d7b70c113d
Author: Andre Klapper <a9016009 gmx de>
Date:   Mon Oct 5 14:27:31 2020 +0200

    Fix broken markup in Catalan help translation

 help/ca/ca.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/ca/ca.po b/help/ca/ca.po
index 823c5f9..fd7d5ae 100644
--- a/help/ca/ca.po
+++ b/help/ca/ca.po
@@ -756,7 +756,7 @@ msgstr "Diàleg de formularis"
 #: C/forms.page:10
 msgid "Use the <cmd>--forms</cmd> option to create a forms dialog."
 msgstr ""
-"Utilitzeu l'opció <cmd>--forms</forms> per a crear un diàleg de formularis."
+"Utilitzeu l'opció <cmd>--forms</cmd> per a crear un diàleg de formularis."
 
 #. (itstool) path: page/p
 #: C/forms.page:14