fix(zfcp_rules): correct shellcheck regression when parsing ccw args

[aafeijoo-suse]

Checklist

• [X] I have tested it locally
• [ ] I have reviewed and updated any documentation if relevant
• [ ] I am providing new code and test(s) for it

Fixes 032ecd95c94b77f3f08237e0f765b355dacb9573

[aafeijoo-suse]

Might be worth checking other places whether they got similarly broken.

I agree

[aafeijoo-suse]

BTW this file will be removed by #2534, so I don't know if this fix makes sense upstream at this point.