devel/rubygem-rubygems-generate_index: Add rubygem-rubygems-generate_index 1.1.3
rubygems-generate_index generates the index files for a gem server directory.
The generate_index command creates a set of indexes for serving gems statically.
The command expects a 'gems' directory under the path given to the --directory
option. The given directory will be the directory you serve as the gem
repository.