Fixes #4700: cf-agent fails on systems that don't support "find . -not ..." (AIX, in particular)
Merge pull request #330 from jooooooon/bug_4700/cf_agent_fails_on_systems_that_don_t_support_find_not_aix_in_particular

Fixes #4700: cf-agent fails on systems that don't support "find . -not ....