[f-spot] Add usage line to help output.

[Ruben Vermeersch <rubenv src gnome org>]

commit e0368cd77274074d154c05e0778c0ed6b29696fa
Author: Ruben Vermeersch <ruben savanne be>
Date:   Tue Jun 8 18:51:53 2010 +0200

    Add usage line to help output.

 src/main.cs |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/main.cs b/src/main.cs
index 08c15ce..f06aae5 100644
--- a/src/main.cs
+++ b/src/main.cs
@@ -21,7 +21,7 @@ namespace FSpot
 	{
 		private static void ShowVersion ()
 		{
-			Console.WriteLine ("F-Spot  {0}", FSpot.Defines.VERSION);
+			Console.WriteLine ("F-Spot {0}", FSpot.Defines.VERSION);
 			Console.WriteLine ("http://f-spot.org";);
 			Console.WriteLine ("\t(c)2003-2009, Novell Inc");
 			Console.WriteLine ("\t(c)2009 Stephane Delcroix");
@@ -44,6 +44,9 @@ namespace FSpot
 
 		private static void ShowHelp ()
 		{
+			Console.WriteLine ("Usage: f-spot [options...] [files|URIs...]");
+			Console.WriteLine ();
+
 			Hyena.CommandLine.Layout commands = new Hyena.CommandLine.Layout (
 				new LayoutGroup ("help", "Help Options",
 					new LayoutOption ("help", "Show this help"),