[gnome-boxes] main: Don't attempt to translate ""

[Christophe Fergeau <teuf src gnome org>]

commit f6fcb4da92388c0ceb7eb9d39e8a68bb2016916c
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Wed Sep 4 12:28:31 2013 +0200

    main: Don't attempt to translate ""
    
    During the refactoring done in commit  0d6c295, we ended up passing _("")
    to g_option context_new(). This is a bad thing to do as "" is a magic
    string for gettext. g_option_context_new() can handle NULL, so let's
    use that here.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=707439

 src/main.vala |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/main.vala b/src/main.vala
index fe46a9d..5f17be0 100644
--- a/src/main.vala
+++ b/src/main.vala
@@ -12,8 +12,7 @@ private const OptionEntry[] local_options = {
 };
 
 private static void parse_local_args (ref unowned string[] args) {
-    var parameter_string = _("");
-    var opt_context = new OptionContext (parameter_string);
+    var opt_context = new OptionContext (null);
     opt_context.set_ignore_unknown_options (true);
     opt_context.add_main_entries (local_options, null);
     opt_context.set_help_enabled (false);