"/usr/bin/setsid: invalid option -- 'w'" error message trying to remotely scan RHEL-6 system from RHEL-7 system using SCAP Workbench 1.1.0 about scap-workbench HOT 4 CLOSED

This is a pretty serious regression in all the maintenance branches. The issue was introduced in 40da1b6

As far as I can see, reverting this commit will fix the issue. It all stems from me misunderstanding what setsid --wait does

EDIT: --wait is needed to pass on the ssh exit code. At this point I don't know how to fix this. Maybe we can just ignore the ssh exit code when setsid doesn't support --wait and pass it on otherwise?

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I decided to use --wait if available and ignore the exit code if --wait is not available.

If SSH fails the user will get notified of it from stderr and stdout of the ssh process. The UX won't be perfect but it will be decent enough.

I will patch the code to check whether --wait is supported at configure time.

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fc6dd83 fixes the issue for v0-8 and v1-0. In those branches there is no configure-time check for setsid so we assume --wait is not supported.

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4997756 fixes the issue for v1-1. We check at configure time, use --wait if supported.

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