Description of problem:
Could not load hashery:

$ ruby -e 'require "hashery"'
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:51:in `require': cannot load such file -- hashery (LoadError)
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:51:in `require'
        from -e:1:in `<main>'


Version-Release number of selected component (if applicable):
rubygem-hashery-2.1.0-3.fc19.noarch (same problem in rawhide)

How reproducible:
always

Steps to Reproduce:
1.  ruby -e 'require "hashery"'

Actual results:
$ ruby -e 'require "hashery"'
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:51:in `require': cannot load such file -- hashery (LoadError)
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:51:in `require'
        from -e:1:in `<main>'

Expected results:
no errors

Additional info:
This is cause by missing gemspec. This patch fix the problem:
diff --git a/rubygem-hashery.spec b/rubygem-hashery.spec
index d812e9f..97aef91 100644
--- a/rubygem-hashery.spec
+++ b/rubygem-hashery.spec
@@ -45,7 +45,7 @@ Documentation for %{name}
 %doc %{gem_instdir}/NOTICE.txt
 %doc %{gem_instdir}/README.rdoc
 %exclude %{gem_cache}
-%exclude %{gem_spec}
+%{gem_spec}
 
 %files doc
 %{gem_instdir}/test