test(make): minor follow up on taint make command

[charliedmcb]

Fixes #

Description
@tallaxes noticed a few solid changes to make to the command after completion, so addressing them here:

• test(make): add taint node make command #234

How was this change tested?
Ran this on a newly created cluster and it tainted the nodes
*

Does this change impact docs?

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

Release Note

NONE

[tallaxes]

LGTM (could consider having target name mention system nodes, but not critical)

[coveralls]

Pull Request Test Coverage Report for Build 8486173650

Details

• 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 97.726%

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Totals
Change from base Build 8476439465:	0.0%
Covered Lines:	35631
Relevant Lines:	36460

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💛 - Coveralls

[charliedmcb]

LGTM (could consider having target name mention system nodes, but not critical)

Updated. I think it makes sense to more specifically mention system.