[gnome-calculator] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit 57844374b0786eb3fbacaecc55463fb2df1ec715
Author: Jordi Mas <jmas softcatala org>
Date:   Mon Aug 5 06:21:28 2019 +0200

    Update Catalan translation

 po/ca.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/po/ca.po b/po/ca.po
index 1db822f9..da6a349d 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -2719,7 +2719,7 @@ msgstr "Enginyer"
 #. Preferences dialog: label for show trailing zeroes check button
 #: src/math-preferences.vala:92
 msgid "Number of _decimals"
-msgstr "_Nombre de decimals:"
+msgstr "_Nombre de decimals"
 
 #. Preferences dialog: label for show trailing zeroes switch
 #: src/math-preferences.vala:104