add rubygem-rdoc as a builddependency

rubygem-httpclient.spec

@@ -5,13 +5,14 @@
 Summary:        HTTP Client interface for ruby
 Name:           rubygem-%{gem_name}
 Version:        2.5.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Group:          Development/Languages
 License:        (Ruby or BSD) and Public Domain
 URL:            https://github.com/nahi/httpclient
 Source0:        http://gems.rubyforge.org/gems/%{gem_name}-%{version}.gem
 %if 0%{?rhel} <= 6 && 0%{?fedora} <= 18
 Requires:       ruby(abi) >= %{rubyabi}
+BuildRequires:  rubygem-rdoc
 %else
 Requires:       ruby(release)
 %endif
@@ -96,6 +97,9 @@ popd
 
 
 %changelog
+* Mon Oct 20 2014 Troy Dawson <tdawson@redhat.com> - 2.5.1-2
+- EPEL6 need rubygem-rdoc
+
 * Mon Oct 20 2014 Troy Dawson <tdawson@redhat.com> - 2.5.1-1
 - Update to 2.5.1