Changing opa cli flag descriptions to match online docs

[OmegaVVeapon]

• Changed the data flag description to specify that it can take policy
  or data files
• Suffixed some descriptions with "This flag can be repeated." where
  applicable

Fixes: #2586
Signed-off-by: Alan Silva alansq16@gmail.com

[ashutosh-narkar]

Thanks @OmegaVVeapon for submitting these changes. We should update the opa deps commands to use the addDataFlag and addBundleFlag methods similar to the opa eval command. We could also add a long description to the deps command similar to eval to include usage examples.

[tsandall]

@OmegaVVeapon can you update the deps command to use the addDataFlag and addBundleFlag functions? Once that change is done, we can merge this.

[OmegaVVeapon]

Ah, my apologies, I misunderstood the comment w/r/t those functions as a refactor change that would happen separately from this PR.

I'm no Go developer but I'll give it a try @tsandall .

[OmegaVVeapon]

Done. Let me know if the commits are alright.

I also added one more function, the addOutputFormat function, in the spirit of further unifying the opa eval and opa deps code.

If that's undesired, I'll revert the commit.

[tsandall]

LGTM. Thanks for fixing this!