2 usage: [--print] [--create [--clobber][--fsid uuid]]
3 [--generate] [--set-initial-members]
4 [--add name 1.2.3.4:567] [--rm name]
5 [--feature-list [plain|parseable]]
6 [--feature-set <value> [--optional|--persistent]]
7 [--feature-unset <value> [--optional|--persistent]] <mapfilename>