grpc: remove excess new line from the log statement (#2766)
grpc: remove excess new line from the log statement (#2766)


grpc/grpc-go,menghanl/grpc-go,grpc/grpc-go,stanley-cheung/grpc-go,menghanl/grpc-go,dfawley/grpc-go,dfawley/grpc-go,stanley-cheung/grpc-go