[gtk] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit 3b604331ec3d2b0126ed36e9da87e3840aa6bf2f
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Jul 28 01:05:25 2019 +0200

    Update Catalan translation

 po-properties/ca.po | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/po-properties/ca.po b/po-properties/ca.po
index ba96837e86..ec8ea0c52b 100644
--- a/po-properties/ca.po
+++ b/po-properties/ca.po
@@ -370,15 +370,15 @@ msgstr "L'etiqueta de l'enllaç al lloc web del programa"
 
 #: gtk/gtkaboutdialog.c:501
 msgid "Authors"
-msgstr "Autors"
+msgstr "Autoria"
 
 #: gtk/gtkaboutdialog.c:502
 msgid "List of authors of the program"
-msgstr "Llista d'autors del programa"
+msgstr "Autoria del programa"
 
 #: gtk/gtkaboutdialog.c:515
 msgid "Documenters"
-msgstr "Documentadors"
+msgstr "Equip de documentació"
 
 #: gtk/gtkaboutdialog.c:516
 msgid "List of people documenting the program"