Update CHANGELOG format
Update CHANGELOG format

higanworks-cookbooks/ohai,mevic/ohai,scalp42/ohai,chef-cookbooks/ohai,protec-cookbooks/ohai,predominant/ohai,Altiscale/ohai,signe/ohai,RelateIQ-chef/ohai-cookbook,kplimack/ohai,7bfa689ac3c4be50f8ba6c1ea8c5f316/ohai,opscode-cookbooks/ohai