When emailToList is not present job fails

[Manuri]

Description:
$Subject

Error log:

[data-integration] Running shell script
+ echo WSO2-TestGrid
WSO2-TestGrid
+ cd /testgrid/testgrid-home/testgrid-dist
+ cd WSO2-TestGrid
+ sed -i s/-Xms256m -Xmx1024m/-Xmx2G -Xms2G/g testgrid
[INFO] : 2019-01-05, 13:11:58 : testgrid.yaml is retrieved from "https://raw.githubusercontent.com/ballerina-platform/ballerina-lang/ballerina-scenarios/.testgrid-data.yaml"
[data-integration] Running shell script
+ curl --user ****:**** -k -o /testgrid/testgrid-home/jobs/data-integration//testgrid.yaml https://raw.githubusercontent.com/ballerina-platform/ballerina-lang/ballerina-scenarios/.testgrid-data.yaml
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100  1394  100  1394    0     0   7838      0 --:--:-- --:--:-- --:--:--  7875
java.lang.Exception: emailToList property is not found in testgrid.yaml file