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

Gem::Specification.new do |gem|
  gem.authors       = ['Kana Natsuno']
  gem.email         = ['dev@whileimautomaton.net']
  gem.summary       = %q{A tool to manage your favorite Vim plugins}
  gem.description   = gem.summary
  gem.homepage      = 'https://github.com/kana/vim-flavor'

  gem.executables   = `git ls-files -- bin/*`.split(/\n/).map{ |f| File.basename(f) }
  gem.files         = `git ls-files`.split(/\n/)
  gem.test_files    = `git ls-files -- {test,spec,features}/*`.split(/\n/)
  gem.name          = 'vim-flavor'
  gem.require_paths = ['lib']
  gem.version       = Vim::Flavor::VERSION

  gem.add_dependency('parslet', '~> 1.0')
  gem.add_dependency('thor', '~> 0.14')

  gem.add_development_dependency('aruba', '~> 0.5')
  gem.add_development_dependency('cucumber', '~> 1.2')
  gem.add_development_dependency('rspec', '~> 2.8')
end
```

Add pry as a development dependency
user
```ruby
# -*- encoding: utf-8 -*-
require File.expand_path('../lib/vim-flavor/version', __FILE__)

Gem::Specification.new do |gem|
  gem.authors       = ['Kana Natsuno']
  gem.email         = ['dev@whileimautomaton.net']
  gem.summary       = %q{A tool to manage your favorite Vim plugins}
  gem.description   = gem.summary
  gem.homepage      = 'https://github.com/kana/vim-flavor'

  gem.executables   = `git ls-files -- bin/*`.split(/\n/).map{ |f| File.basename(f) }
  gem.files         = `git ls-files`.split(/\n/)
  gem.test_files    = `git ls-files -- {test,spec,features}/*`.split(/\n/)
  gem.name          = 'vim-flavor'
  gem.require_paths = ['lib']
  gem.version       = Vim::Flavor::VERSION

  gem.add_dependency('parslet', '~> 1.0')
  gem.add_dependency('thor', '~> 0.14')

  gem.add_development_dependency('aruba', '~> 0.5')
  gem.add_development_dependency('cucumber', '~> 1.2')
  gem.add_development_dependency('pry')
  gem.add_development_dependency('rspec', '~> 2.8')
end
```
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