[f-spot] Fix two warnings.

[Ruben Vermeersch <rubenv src gnome org>]

commit 49bcd43368b2ac17b488cc2750ecbdd25644e8d9
Author: Ruben Vermeersch <ruben savanne be>
Date:   Sun Jun 28 20:37:48 2009 +0200

    Fix two warnings.

 src/ImageLoader.cs |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/ImageLoader.cs b/src/ImageLoader.cs
index 341da60..b897974 100644
--- a/src/ImageLoader.cs
+++ b/src/ImageLoader.cs
@@ -195,8 +195,8 @@ namespace FSpot {
 							base.Close (true);
 						else if (!is_disposed && Write (buffer, (ulong)byte_read))
 							image_stream.BeginRead (buffer, 0, count, HandleReadDone, null);
-					} catch (System.ObjectDisposedException od) {
-					} catch (GLib.GException ge) {
+					} catch (System.ObjectDisposedException) {
+					} catch (GLib.GException) {
 					}
 				}
 			}