Issue title: Curl: option -: is unknown
 Issue body: When I run the script about 75% of the checks are returning with: 
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curl: option -: is unknown
curl: try 'curl --help' or 'curl --manual' for more information
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Has anyone came across this?
 Comments: 
 Comment 0: Hi @zarbthomas 
I used to face this issue, I think it was related to "jq".Not sure actually. Can you install that and try. Let me know if doesn't work.


Thanks
 Comment 1: I have jq 1.6 installed and still running into the same issue 
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