[libguestfs] Enable hardened build.

[Richard W.M. Jones]

commit b281b8b2e7cb6e0a0d04293613c212301b0d410f
Author: Richard W.M. Jones <rjones at redhat.com>
Date:   Tue Apr 2 15:28:46 2013 +0100

    Enable hardened build.

 libguestfs.spec |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/libguestfs.spec b/libguestfs.spec
index 11c651b..0b3ac45 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -6,6 +6,8 @@
 %global runtests 1
 %endif
 
+%global _hardened_build 1
+
 Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1