The license identifier in metadata.json is invalid according to metadata-json-lint

[markslater]

According to metadata-json-lint, the license identfier in metadata.json should be "Apache-2.0":

$ rake validate
---> syntax:manifests
---> syntax:templates
---> syntax:hiera:yaml
metadata-json-lint metadata.json
Warning: License identifier Apache License, Version 2.0 is not in the SPDX list: http://spdx.org/licenses/
Errors found in metadata.json
rake aborted!
Command failed with status (1): [metadata-json-lint metadata.json...]
/var/lib/gems/1.9.1/gems/puppetlabs_spec_helper-0.10.3/lib/puppetlabs_spec_helper/rake_tasks.rb:251:in `block in <top (required)>'
/var/lib/gems/1.9.1/gems/puppetlabs_spec_helper-0.10.3/lib/puppetlabs_spec_helper/rake_tasks.rb:244:in `block in <top (required)>'
Tasks: TOP => metadata
(See full trace by running task with --trace)

[tylerwalts]

Thanks!