rubygem doc is not multilib-clean for x86_64 vs i686

RHEL 6:

Subpackage rubygem-qpid_proton-doc is not multilib-clean for x86_64 vs i686: 166 files have non-equal 32/64bit content: /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/ri/created.rid /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/ri/Qpid/Proton/cdesc-Proton.yaml /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/ri/Qpid/Proton/Codec/cdesc-Codec.yaml /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/index.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/fr_method_index.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/files/lib/util/wrapper_rb.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/files/lib/util/version_rb.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/files/lib/util/timeout_rb.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/files/lib/util/error_handler_rb.html /usr/lib/ruby/gems/1.8/doc/qpid_proton-0.20.0/rdoc/files/lib/util/deprecation_rb.html