class RSpec::Core::RakeTask

def spec_command
  cmd_parts = []
  cmd_parts << RUBY
  cmd_parts << ruby_opts
  cmd_parts << rspec_load_path
  cmd_parts << escape(rspec_path)
  cmd_parts << file_inclusion_specification
  cmd_parts << file_exclusion_specification
  cmd_parts << rspec_opts
  cmd_parts.flatten.reject(&blank).join(" ")
end