lib/command_factory.js
function commandDescription(desc, state)
{
  desc = state[desc] || desc;
  return desc.join ? '[' + desc.join(', ') + ']' : desc.toString();
}
function commandDescription(desc, state)
{
  desc = state[desc] || desc;
  return desc.join ? '[' + desc.join(', ') + ']' : desc.toString();
}
function commandDescription ( desc , state ) { desc = state [ desc ] || desc ; return desc . join ? '[' + desc . join ( ', ' ) + ']' : desc . toString ( ) ; }
Provides command description, finds matching within state object
or uses provided one as is

@private
@param   {string} desc - command's description or property
to fetch command from current state
@param   {object} state - current state
@returns {string} - command's description
Provides command description finds matching within state object or uses provided one as is