print elapsed time in user friendly format instead of seconds on cli

[Sheshagiri]

This is not a bug but just a small user experience improvement.

When we get the status of execution using the st2 cli time is mentioned in seconds it would be nice to print time in a user-friendly format.

ex: running (339s elapsed), could be: running (5m39s elapsed)

I'll try to make a pr with the changes if its okay.

[arm4b]

Yeah, makes better sense for CLI representation.

[winem]

Hi,

the PR implements the requested change with a small deviation. The elapsed time will look like this: (0:01:12 hours elapsed) or (1 day, 2:03:23 hours elapsed) instead of (1m12s elapsed). The reason is that this is the default presentation of datetime.timedelta.

Please let me know if this is not convenient enough and you prefer the requested format. In that case I add a few lines code to change the format.

[Sheshagiri]

@winem thanks a lot for the pr. This is definitely better than just the number of seconds, that said while we are at this I think it would be a nice idea to having it something like 5d6h7m8s.

[winem]

Hi @Sheshagiri, I updated the PR and the elapsed time will be presented as requested. Guess it's the right thing to do when we're talking about a more user friendly format and my priority on "less code" was not the right one in this case. :)

[shree-crypto]

is this open ? i am new to opensource and would like this to be my first contribution if its possible !!!