[orca] Fix Catalan translation

[Jordi Mas <jmas src gnome org>]

commit d71eb6b1a02db97236b6d88bad402743778b27cd
Author: Robert Antoni Buj i Gelonch <robert buj gmail com>
Date:   Thu Aug 15 22:56:12 2019 +0200

    Fix Catalan translation

 po/ca.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/po/ca.po b/po/ca.po
index 48dea1444..156e78c41 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -624,7 +624,7 @@ msgstr "línia nova"
 #.
 #: ../src/orca/chnames.py:49 ../src/orca/keynames.py:130
 msgid "tab"
-msgstr "pestanya"
+msgstr "tabulador"
 
 #. Translators: this is the spoken word for the character '!' (U+0021)
 #.