chore: az-mkrg fix

[rakechill]

Description
Follow-up to #131. Currently the e2e test suite + local dev via make az-all is blocked by this. The if condition was always evaluating as true, because non-empty strings in bash are truthy.

How was this change tested?

• make az-mkrg, e2e suite (passed, except for utilization, not due to this issue)

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

[rakechill]

/test

[coveralls]

Pull Request Test Coverage Report for Build 7751204900

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.546%

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Totals
Change from base Build 7748470702:	0.0%
Covered Lines:	35741
Relevant Lines:	36640

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💛 - Coveralls

[charliedmcb]

I feel like there is probably something we could do more elegant than grep, but this works :)