[COOK-4337] fixing validations
[COOK-4337] fixing validations

Signed-off-by: Sean OMeara <4025b808ec3cf11e3d5c9a1a3bd1e7c4003cb3a1@opscode.com>

Altiscale/cron,opscode-cookbooks/cron,evangael/cron,chasebolt/cron,veetow/cron,jeroenj/cron,jhauf-nativex/chef-cron,schubergphilis/cron,flaccid/cron,chasebolt/cron,chef-cookbooks/cron,flaccid/cron,jeroenj/cron,veetow/cron,sbotman/cron,erkolson/cron,evertrue/cron,clewis/cron,martinb3-cookbooks/cron,erkolson/cron,opscode-cookbooks/cron,chef-cookbooks/cron,Altiscale/cron