Convert 1.4-1.5 kubectl skew to 1.7-master kubectl skew
Convert 1.4-1.5 kubectl skew to 1.7-master kubectl skew

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid