module RSpec::Core::Metadata::MetadataHash

def build_description_from(first_part = '', *parts)
  description, _ = parts.inject([first_part.to_s, first_part]) do |(desc, last_part), this_part|
    this_part = this_part.to_s
    this_part = (' ' + this_part) unless method_description_after_module?(last_part, this_part)
    [(desc + this_part), this_part]
  end
  description
end