From 219b3532b492fe9731d0fe5a98ab68e59e62bd02 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 31 Jan 2014 12:45:23 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/tweak_book/diff/main.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tweak_book/diff/main.py b/src/calibre/gui2/tweak_book/diff/main.py
index 9dc6081acb..75a61bb5af 100644
--- a/src/calibre/gui2/tweak_book/diff/main.py
+++ b/src/calibre/gui2/tweak_book/diff/main.py
@@ -442,7 +442,7 @@ def main(args=sys.argv):
     d = Diff()
     d.show()
     getattr(d, attr)(left, right)
-    app.exec_()
+    return app.exec_()
 
 if __name__ == '__main__':
     main()