57407d7f5e
While looking into `docker stats <c1> <c2> ...` I noticed that the error output is quite long, especially if there are multiple errors: ```sh ubuntu@ubuntu:~/docker$ docker stats nofound : Error response from daemon: No such container: nofound ubuntu@ubuntu:~/docker$ docker stats nofound foo bar : Error response from daemon: No such container: nofound, : Error response from daemon: No such container: foo, : Error response from daemon: No such container: bar ``` There are several issues, 1. There is an extra `: ` at the beginning. That is because if container is not found, the name will not be available from the daemon. 2. Multiple errors are concatenated with `, ` which will be quite long. This fix: 1. Only prient out the error from daemon. 2. Multiple errors are printed out line by line. Below is the new output: ```sh ubuntu@ubuntu:~/docker$ docker stats nofound Error response from daemon: No such container: nofound ubuntu@ubuntu:~/docker$ docker stats nofound foo bar Error response from daemon: No such container: nofound Error response from daemon: No such container: foo Error response from daemon: No such container: bar ``` Signed-off-by: Yong Tang <yong.tang.github@outlook.com> Upstream-commit: 32de162fc9a18f7f2d702ce488e73b5eca0199ce Component: engine