[gnome-dictionary] Fix displaying the program name in the about dialog

[Piotr Drąg <piotrdrag src gnome org>]

commit 27903aec3b0c9d48c2f212a294abf7de2d478c23
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Jul 3 23:46:14 2017 +0200

    Fix displaying the program name in the about dialog
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784343

 src/gdict-about.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gdict-about.c b/src/gdict-about.c
index 745a0c2..47f5754 100644
--- a/src/gdict-about.c
+++ b/src/gdict-about.c
@@ -57,7 +57,7 @@ gdict_show_about_dialog (GtkWidget *parent)
   g_return_if_fail (GTK_IS_WIDGET (parent));
   
   gtk_show_about_dialog (GTK_IS_WINDOW (parent) ? GTK_WINDOW (parent) : NULL,
-                        "name", _("Dictionary"),
+                        "program-name", _("Dictionary"),
                         "version", VERSION,
                         "copyright", copyright,
                         "comments", comments,