ReplyBuilderInterface::augmentReplyWithStatus duplicates CommandHelpers::appendCommandStatusNoThrow, supposedly to avoid a cyclic library dependency. The former is used primarily by mongod/mongocryptd, whereas the latter is primarily used by mongos, so any deviations can create behavioral differences between the two. We should unify these implementations to eliminate the risk of divergence.

https://github.com/10gen/mongo/blob/4e860a655875d75217a485c54344f9cdfadb37c6/src/mongo/rpc/reply_builder_interface.cpp#L54-L55

https://github.com/10gen/mongo/blob/4e860a655875d75217a485c54344f9cdfadb37c6/src/mongo/db/commands.cpp#L389-L390

ReplyBuilderInterface::augmentReplyWithStatus is owned by NO whereas CommandHelpers::appendCommandStatusNoThrow is owned by SP. I'm going to assign this to SP since it concerns standardizing an API.