[gtranslator] Fix zh plural forms

[Daniel Garcia Moreno <danigm src gnome org>]

commit b3ce28907e13a8e7feae156888594a0111f33d6b
Author: Daniel García Moreno <danigm wadobo com>
Date:   Tue Sep 18 10:19:23 2018 +0200

    Fix zh plural forms

 data/gtr-plural-forms.ini | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/gtr-plural-forms.ini b/data/gtr-plural-forms.ini
index 7a424bbe..27168425 100644
--- a/data/gtr-plural-forms.ini
+++ b/data/gtr-plural-forms.ini
@@ -116,5 +116,5 @@ uz=nplurals=1; plural=0;
 vi=nplurals=1; plural=0
 wa=nplurals=2; plural=(n > 1)
 zh_CN=nplurals=1; plural=0
-zh_trad=nplurals=1; plural=0
-zh_trad=nplurals=1; plural=0
+zh_HK=nplurals=1; plural=0
+zh_TW=nplurals=1; plural=0