code: function getCredit(credits, author) {
  	const credit = credits.filter(credit => {
  		// Fallback to name when no email
  		// is available
  		if (credit.email && author.email) {
  			return credit.email === author.email;
  		}
  
  		return credit.name === author.name;
  	});
  
  	return credit.length > 0 ?
  		credit[0] :
  		false;
  }
docs: Get credit out of running credits list
  
  @param  {Array} credits list of credits
  @param  {Object} author author
  
  @return {Object|false}  existing credit or false
  
  @tested