Allow to customise failed/disabled string

[simon04]

Example:

check_ms_win_tasks.ps1 --TemplateStringFailed "n={0}/a={1}/t={2}/x={3}//"

[willemdh]

Thanks!
@jonasdlm Can you test this pls?

[willemdh]

@simon04 Just tested this and the output is different now and contains backticks..

So I can't accept this PR.

[simon04]

Should be fixed via 0fafdf2.

[willemdh]

@simon04 Thanks for the fast response, I'll try to test asap.

[simon04]

Thank you, please let me know if anything else needs to be changed…