Updated help message.
Updated help message.

Signed-off-by: Krzysztof Wilczynski <9bf091559fc98493329f7d619638c79e91ccf029@linux.com>

jbondpdx/puppetlabs-stdlib,fuel-infra/puppetlabs-stdlib,yadavnikhil/puppetlabs-stdlib,HelenCampbell/puppetlabs-stdlib,DavidS/puppetlabs-stdlib,puppetlabs/puppetlabs-stdlib