```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/vagrant-dns/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ["Florian Gilcher", "Robert Schulze"]
  gem.email         = ["florian.gilcher@asquera.de", "robert@dotless.de"]
  gem.description   = %q{vagrant-dns is a vagrant plugin that manages DNS records associated with local machines.}
  gem.summary       = %q{vagrant-dns manages DNS records of vagrant machines}
  gem.homepage      = ""

  gem.files         = `git ls-files`.split($\).reject { |f| f.match(%r{^(test|testdrive)/}) }
  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
  gem.name          = "vagrant-dns"
  gem.require_paths = ["lib"]
  gem.version       = VagrantDNS::VERSION

  gem.required_ruby_version = '>= 2.2.6'

  gem.add_dependency "daemons"
  gem.add_dependency "rubydns", '~> 2.0.0'

  gem.add_development_dependency 'rspec'
end
```

Add “MIT” license to gemspec
user
```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/vagrant-dns/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ["Florian Gilcher", "Robert Schulze"]
  gem.email         = ["florian.gilcher@asquera.de", "robert@dotless.de"]
  gem.description   = %q{vagrant-dns is a vagrant plugin that manages DNS records associated with local machines.}
  gem.summary       = %q{vagrant-dns manages DNS records of vagrant machines}
  gem.homepage      = ""
  gem.license       = "MIT"

  gem.files         = `git ls-files`.split($\).reject { |f| f.match(%r{^(test|testdrive)/}) }
  gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
  gem.name          = "vagrant-dns"
  gem.require_paths = ["lib"]
  gem.version       = VagrantDNS::VERSION

  gem.required_ruby_version = '>= 2.2.6'

  gem.add_dependency "daemons"
  gem.add_dependency "rubydns", '~> 2.0.0'

  gem.add_development_dependency 'rspec'
end
```
assistant