Recently a feature was merged to support pulling in multiple
configuration files from a globals.d directory. However, if this
directory does not exist, we get the following error when executing
kolla-ansible:
find: '/etc/kolla/globals.d': No such file or directory
This change addresses this by redirecting find command stderr to
/dev/null.
TrivialFix
Change-Id: Ie5aa511a5ebf3355817a7c3bb65b09ac5dcf2b67
4d8d678240