[simple-scan] Respect GNOME HIG for capitalization

[Bartosz <bkosiorek src gnome org>]

commit a128144be70bda4a687a0a802dec23d6835c9973
Author: Thibault Martin <mail thibaultmart in>
Date:   Thu Aug 13 18:19:50 2020 +0200

    Respect GNOME HIG for capitalization

 src/app-window.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/app-window.vala b/src/app-window.vala
index 6e8612bc..9626d68f 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -1885,7 +1885,7 @@ public class AppWindow : Gtk.ApplicationWindow
         /* Populate ActionBar (not supported in Glade) */
         /* https://bugzilla.gnome.org/show_bug.cgi?id=769966 */
         var button = new Gtk.Button.with_label (/* Label on new document button */
-                                               _("New document…"));
+                                               _("New Document…"));
         button.visible = true;
         button.clicked.connect (new_document_cb);
         action_bar.pack_start (button);