[libguestfs] Apparently %ifarch needs something as a parameter, so give it a bogus string.

[Richard W.M. Jones]

commit 9f1ba81bce4ed17d70806f4ecc65f066b53cac34
Author: Richard W.M. Jones <rjones at redhat.com>
Date:   Fri May 16 14:25:15 2014 +0100

    Apparently %ifarch needs something as a parameter, so give it a bogus string.

 libguestfs.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libguestfs.spec b/libguestfs.spec
index af688e0..3d3e569 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -17,7 +17,7 @@
 # Architectures on which golang is not broken.
 # Broken on all of them for now, see RHBZ#1097663
 #%global golang_arches %{arm} %{ix86} x86_64
-%global golang_arches %{nil}
+%global golang_arches not_a_real_architecture
 
 %global _hardened_build 1