remove hardcoded Chef::Log, allow a logger to be set on create
remove hardcoded Chef::Log, allow a logger to be set on create

chef/mixlib-shellout,juliandunn/mixlib-shellout,chef/mixlib-shellout,Nordstrom/mixlib-shellout,docwhat/mixlib-shellout,BackSlasher/mixlib-shellout,BackSlasher/mixlib-shellout,docwhat/mixlib-shellout,juliandunn/mixlib-shellout