Silence help text on run errors

[bgins]

We currently print the help text on every command failure. Printing usage information is great when an error occurs parsing CLI options. However, it's noisy and unhelpful for errors reported afterwards.

Let's silence the help text after we have parsed CLI options. For example, in the run subcommand:

lilypad/cmd/lilypad/run.go

Lines 33 to 37 in b467d0f

	options, err := optionsfactory.ProcessJobCreatorOptions(options, args, network)
	if err != nil {
	return err
	}
	return runJob(cmd, options, network)

we could set cmd.SilenceUsage to true after handling any ProcessJobCreatorOptions errors.

The silenced error output can be tested by temporarily returning an error from the first line of the runJob function:

lilypad/cmd/lilypad/run.go

Lines 46 to 47 in b467d0f

	func runJob(cmd *cobra.Command, options jobcreator.JobCreatorOptions, network string) error {
	c := color.New(color.FgCyan).Add(color.Bold)

[gurkin2005]

I would like to work on this