catinthesky ea6d92d351 Fixing issue of docker top command failure when dealing with -m option ...

Changed per requested review to refactor to make it more logic clear.

Current output for "docker top <contianer-id> m" option,eg:
root@b2c7ec58399d:/go/src/github.com/docker/docker# docker top 755d5871ec45 am
PID                 TTY                 STAT                TIME                COMMAND
148                 pts/0               -                   0:00                bash
-                   -                   Ss+                 0:00                -

fixing issue:#30580

Signed-off-by: catinthesky <yaozaiyong@hotmail.com>
Upstream-commit: a7497c39cdf78e817ad1372a8e3e16e0ccb77bb9
Component: engine

2017-03-10 02:50:21 +00:00

..

engine

Fixing issue of docker top command failure when dealing with -m option

2017-03-10 02:50:21 +00:00