[gnome-subtitles] Fix #149 - Translations not being used in 1.6 on Fedora 31

[Pedro Castro <pcastro src gnome org>]

commit 4423226576be9009b7ff060f1f715e60ce69571f
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Sat Jun 27 11:03:13 2020 +0100

    Fix #149 - Translations not being used in 1.6 on Fedora 31

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index a6cc473..37f58fa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ IT_PROG_INTLTOOL([0.50])
 
 dnl Gettext stuff.
 
-GETTEXT_PACKAGE=gnome-subtitles
+GETTEXT_PACKAGE=org.gnome.GnomeSubtitles
 AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE", [Gettext package])