Update rdoc requirement from ~> 5.1 to ~> 6.1

Updates the requirements on [rdoc](https://github.com/ruby/rdoc) to permit the latest version.
- [Release notes](https://github.com/ruby/rdoc/releases)
- [Changelog](https://github.com/ruby/rdoc/blob/master/History.rdoc)
- [Commits](https://github.com/ruby/rdoc/commits/v6.1.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>
This commit is contained in:
dependabot[bot] 2018-12-28 15:34:53 +00:00
parent 6e5a0825d8
commit dde0195ec0
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@ -54,7 +54,7 @@ Gem::Specification.new do |spec|
spec.add_development_dependency 'codecov', '~> 0.1'
spec.add_development_dependency 'diffy', '~> 3'
spec.add_development_dependency 'rake', '~> 12'
spec.add_development_dependency 'rdoc', '~> 5.1'
spec.add_development_dependency 'rdoc', '~> 6.1'
spec.add_development_dependency 'ronn', '~> 0'
spec.add_development_dependency 'rspec', '~> 3.7'
spec.add_development_dependency 'rspec-its', '~> 1.2'