hosts/linux: escape regular expression for prune NFS exports [GH-2934]
provisioners/salt: error if minion_config missing [GH-2893]
Revert "Merge pull request #2677 from purpleidea/fix_puppet_apply"

This reverts commit 9ac4ec85dd5a3cd4af09430dd5e432b9a5e3da0f, reversing
changes made to 8dbad22d728fe9ba35d7dc3c51ac2e8356c4117f.
provisioners/puppet: append module path  (default) [GH-2677]