Fix reference to configure-logging! function

This was broken during the kitchensink move, this patch puts it back
from the com.puppetlabs.utils.logging now. Without this patch users
of the `benchmark` sub-command will receive an exception.

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #762 from kbarber/maint/master/fix-reference-to-configure-logging

Fix reference to configure-logging! function