[libexplain] Add BuildRequires of ghostscript.

[Eric Smith]

commit 87d53a13fcfe8d0948fcfc32ee871b20c177147b
Author: Eric Smith <brouhaha at fedoraproject.org>
Date:   Tue Jun 4 11:32:51 2013 -0600

    Add BuildRequires of ghostscript.

 libexplain.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libexplain.spec b/libexplain.spec
index d8194ab..4683825 100644
--- a/libexplain.spec
+++ b/libexplain.spec
@@ -9,7 +9,7 @@ Source0:        http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.
 License:        LGPLv3+
 Group:          System Environment/Libraries
 
-BuildRequires:  bison libcap-devel libtool groff gettext
+BuildRequires:  bison libcap-devel libtool groff gettext ghostscript
 
 %description
 The libexplain project provides a library which may be used to explain