[gnome-nibbles] LINGUAS: Re-enable pt_BR doc translation

[Rafael Fontenelle <rafaelff src gnome org>]

commit c235dab9e31943a792a2ad381cddd8b9ee7398c5
Author: Rafael Fontenelle <rffontenelle gmail com>
Date:   Wed Nov 27 03:20:54 2019 +0000

    LINGUAS: Re-enable pt_BR doc translation
    
    When porting to meson (844d78ea), the Makefile.am that listed pt_BR was
    removed and LINGUAS did not include pt_BR.  This commit adds pt_BR so
    it is built together with other languages.

 help/LINGUAS | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/help/LINGUAS b/help/LINGUAS
index e5532f4..8f263b3 100644
--- a/help/LINGUAS
+++ b/help/LINGUAS
@@ -6,5 +6,6 @@ es
 fr
 hu
 pl
+pt_BR
 sv
 tr