[kimono] only use mono_arches if defined

[Rex Dieter]

commit c14d8706a7af7287568e7af5958202bb18560f39
Author: Rex Dieter <rdieter at math.unl.edu>
Date:   Wed Apr 3 10:14:34 2013 -0500

    only use mono_arches if defined

 kimono.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/kimono.spec b/kimono.spec
index ba21988..11ed26e 100644
--- a/kimono.spec
+++ b/kimono.spec
@@ -32,7 +32,7 @@ BuildRequires: smokekde-devel >= %{version}
 %{?_kde4_version:Requires: qyoto%{?_isa} >= %{_kde4_version}}
 %{?_kde4_version:Requires: smokekde%{?_isa} >= %{_kde4_version}}
 
-ExclusiveArch: %{mono_arches}
+%{?mono_arches:ExclusiveArch: %{mono_arches}}
 
 %description
 %{summary}.