prevent starting up a --shardsvr if not also started with --replSet, unless the node is started with --enableTestCommands
Docs for SERVER-32051: Require shard servers and config servers to be replica sets
Unable to start nodes in sharded cluster with 3.6.0-rc5
Update ShardingTest to default to starting shard servers as single-node replica sets rather than standalones
Require shard servers and config servers to be started with --replSet or 'replSetName'