Adds support for building facter on RHEL7 via spec.

Author: dyarnell

ext/redhat/facter.spec.erb

@@ -1,6 +1,6 @@
-# Fedora 17 ships with ruby 1.9, which uses vendorlibdir instead
+# Fedora 17 ships with ruby 1.9, RHEL 7 with ruby 2.0, which use vendorlibdir instead
 # of sitelibdir
-%if 0%{?fedora} >= 17
+%if 0%{?fedora} >= 17 || 0%{?rhel} >= 7
 %global facter_libdir   %(ruby -rrbconfig -e 'puts RbConfig::CONFIG["vendorlibdir"]')
 %else
 %global facter_libdir   %(ruby -rrbconfig -e 'puts RbConfig::CONFIG["sitelibdir"]')
@@ -35,8 +35,8 @@ Requires:       virt-what
 Requires:       ruby >= 1.8.5
 BuildRequires:  ruby >= 1.8.5
 
-# In Fedora 17 ruby-rdoc is called rubygem-rdoc
-%if 0%{?fedora} >= 17
+# In Fedora 17+ or RHEL 7+ ruby-rdoc is called rubygem-rdoc
+%if 0%{?fedora} >= 17 || 0%{?rhel} >= 7
 BuildRequires:  rubygem-rdoc
 %else
 BuildRequires:  ruby-rdoc