Need raised in f3f4259d3f. BTW: Alligned the implementation of grpclogs with what we use in embed server, so reduced the client code dependencies.
f3f4259d3f
env ETCD_CLIENT_DEBUG supports log levels (debug, info, warn, error, dpanic, panic, fatal). Only when set, overrides application-wide grpc logging settings.
Mechanical: % git mv clientv3 client/v3 % git mv client/mock client/v3/