Ubuntu: Could not enable service cfn-hup

I figure it out what's wrong with my code. Its the cfn-hup service. It don't start after the installation. See the changes on user's data. Below is the updated code.

"LaunchConfig" : {
  "Type" : "AWS::AutoScaling::LaunchConfiguration",
  "Metadata" : {
    "Comment" : "Install a simple application",
    "AWS::CloudFormation::Init" : {
      "config" : {

        "files" : {

          "/etc/cfn/cfn-hup.conf" : {
            "content" : { "Fn::Join" : ["", [
              "[main]\n",
                "stack=", { "Ref" : "AWS::StackId" }, "\n",
                "region=", { "Ref" : "AWS::Region" }, "\n"
              ]]},
            "mode"    : "000400",
            "owner"   : "root",
            "group"   : "root"
          },

          "/etc/cfn/hooks.d/cfn-auto-reloader.conf" : {
            "content": { "Fn::Join" : ["", [
              "[cfn-auto-reloader-hook]\n",
                "triggers=post.update\n",
                "path=Resources.LaunchConfig.Metadata.AWS::CloudFormation::Init\n",
                "action=/usr/local/bin/cfn-init -v ",
                "         --stack ", { "Ref" : "AWS::StackName" },
                "         --resource LaunchConfig ",
                "         --region ", { "Ref" : "AWS::Region" }, "\n",
                "runas=root\n"
              ]]}
          }
        },

        "services" : {
          "sysvinit" : {
            "cfn-hup" : { "enabled" : "true", "ensureRunning" : "true",
            "files" : ["/etc/cfn/cfn-hup.conf", "/etc/cfn/hooks.d/cfn-auto-reloader.conf"]}
            }
          }
        }
      }
    },

    "Properties" : {
      "AssociatePublicIpAddress" : "true",
      "ImageId" : { "Ref" : "AmiId" },
      "SecurityGroups" : [ { "Ref" : "LoadBalancerSecurityGroup" } ],
      "KeyName"        : { "Ref" : "KeyName" },
      "InstanceType" : { "Ref" : "InstanceType" },
      "IamInstanceProfile": {"Ref" :"RoleName"},
      "UserData"       : { "Fn::Base64" : { "Fn::Join" : ["", [
       "#!/bin/bash \n",
       "easy_install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz\n",
       "sudo ln /usr/local/bin/cfn-hup /etc/init.d/ \n",
       "sudo initctl reload-configuration  \n",
       "sudo chmod 700 /etc/init.d/cfn-hup  \n",
       "sudo chown root:root /etc/init.d/cfn-hup \n",
       "sudo update-rc.d cfn-hup defaults  \n",
       "sudo update-rc.d cfn-hup enable  \n",
       "/usr/local/bin/cfn-init -v ",
       "         --stack ", { "Ref" : "AWS::StackName" },
       "         --resource LaunchConfig ",
       "         --region ", { "Ref" : "AWS::Region" }, "\n",

       "/usr/local/bin/cfn-signal -e $? ",
       "         --stack ", { "Ref" : "AWS::StackName" },
       "         --resource WebServerGroup ",
       "         --region ", { "Ref" : "AWS::Region" }, "\n",

       "sed -i'' -e 's/.*requiretty.*//' /etc/sudoers", "\n",
       "pip install --upgrade awscli", "\n",

       "INSTANCE_ID=$(aws opsworks register ",
       "         --use-instance-profile ",
       "         --infrastructure-class ec2 ",
       "         --region ", { "Ref" : "AWS::Region" },
       "         --stack-id ", { "Ref" : "OpsWorksStackId" },
       "         --override-hostname $(tr -cd 'a-z' < /dev/urandom |head -c8) --local 2>&1 |grep -o 'Instance ID: .*' |cut -d' ' -f3)", "\n",

       "aws opsworks wait instance-registered ", 
       "         --region ", { "Ref" : "AWS::Region" },
       "         --instance-id $INSTANCE_ID", "\n",

       "aws opsworks assign-instance ",
       "         --region ", { "Ref" : "AWS::Region" },
       "         --instance-id $INSTANCE_ID ",
       "         --layer-ids ", { "Ref": "OpsWorksLayerId" }, "\n"
     ]]}}
    }
  }