OAuth 2.0 Username-Password Flow invalid_grant invalid_client

I'm trying to log into salesforce from a google script.  when I run the auth function from my code I get this:

{"error_description":"authentication failure","error":"invalid_grant"}

when I try to connect from curl I the same thing

curl command:

curl https://login.salesforce.com/services/oauth2/token -d 'grant_type=password&client_id=<client Id from my app i created in salesforce>&username=<my admin username in salesforce>&password=<my salesforce password><my salesforce security token>&client_secret=<client secred from app i created in salesforce>' -H "X-PrettyPrint: 1"

My google script code:

var url = "https://na14.salesforce.com/services/oauth2/token";
  var payload =
  {
     "grant_type"   : "password",
     "client_id"    : "<my app client id from the app I created in salesforce>",
     "client_secret": "<my client secret from the app i created in salesforce>",
     "username"     : "<my sales force login email address>",
     "password"     : "<my salesforce password><my salesforce security token>"
  };
  var options =
  {
    "method" : "post",
    "payload" : payload
  };
  var response = UrlFetchApp.fetch(url, options);