[gitg] Print message when failing to parse option flag

[Jesse van den Kieboom <jessevdk src gnome org>]

commit e24ef2e07058a5b75983648d8295ddbc4a2da9f1
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Mon Dec 15 07:56:06 2014 +0100

    Print message when failing to parse option flag

 gitg/gitg-application.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gitg/gitg-application.vala b/gitg/gitg-application.vala
index b383964..84bf4cd 100644
--- a/gitg/gitg-application.vala
+++ b/gitg/gitg-application.vala
@@ -126,6 +126,7 @@ public class Application : Gtk.Application
                }
                catch (Error e)
                {
+                       stderr.printf("Failed to parse options: %s\n", e.message);
                        exit_status = 1;
                        return true;
                }