Describe how restart with time flag works

[johndmulhausen]

@montanaflynn commented on Thu Sep 28 2017

File: engine/reference/commandline/restart.md, CC @mstanleyjones

It's unclear how the --time flag works, does it simply simply sleep before stopping the container or does it follow the same logic as docker stop where it first sends a SIGTERM followed by SIGKILL after the time period is up?

[donigian]

Submitted PR for this clarification.

[thaJeztah]

Looks like this was addressed as part of #5485 (comment)