Doug Davis d879adf33b Add --help to "docker volume inspect --help" output ...

Closes #16146

While in there, modified the testing infrastructure for the help text
so that we can get commands with nested commands - like "volume".

Signed-off-by: Doug Davis <dug@us.ibm.com>
Upstream-commit: 87255b6721f4dc02ae34696f2013537fdc967a99
Component: engine

2015-09-08 14:24:00 -07:00

..

engine

Add --help to "docker volume inspect --help" output

2015-09-08 14:24:00 -07:00