[gnome-system-monitor] Added myself to the authors list

[Robert Roth <robertroth src gnome org>]

commit 2553aca31e7aea2660869c608897a9d631637ad6
Author: Robert Roth <robert roth off gmail com>
Date:   Fri Dec 7 22:00:44 2012 +0200

    Added myself to the authors list

 src/callbacks.cpp |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/callbacks.cpp b/src/callbacks.cpp
index b80fe5a..e5e1f6c 100644
--- a/src/callbacks.cpp
+++ b/src/callbacks.cpp
@@ -164,6 +164,7 @@ cb_about (GtkAction *action, gpointer data)
         "Paolo Borelli",
         "Karl Lattimer",
         "Chris KÃhl",
+        "Robert Roth",
         NULL
     };