[rubygem-mixlib-shellout/el6] (2 commits) ...Ensure we are BuildRequires-ing rubygems -- EL6 needs this

[Julian C. Dunn]

Summary of changes:

  c7a48c3... Ensure we BR ruby(rubygems); on EL6, rubygems are still sep (*)
  c0ba1b3... Ensure we are BuildRequires-ing rubygems -- EL6 needs this (*)

(*) This commit already existed in another branch; no separate mail sent