Enable RSpec test suite.

rubygem-aruba.spec

@@ -92,8 +92,18 @@ rm -rf \
 
 %check
 pushd .%{gem_instdir}
+# Drop the fuubar dependency.
+rm .rspec
+
+# We don't care about code coverage.
+sed -i "/simplecov/I s/^/#/" spec/spec_helper.rb
+
+# We don't need Bundler.
+sed -i "/bundler/I s/^/#/" spec/spec_helper.rb
+
+RUBYOPT=-rtime rspec spec
+
 cucumber || true
-rspec spec || true
 popd