class RuboCop::Cop::Gemspec::AddRuntimeDependency

Prefer ‘add_dependency` over `add_runtime_dependency` as the latter is considered soft-deprecated.

@example

# bad
Gem::Specification.new do |spec|
  spec.add_runtime_dependency('rubocop')
end

# good
Gem::Specification.new do |spec|
  spec.add_dependency('rubocop')
end