configmgr extract: no new line for the last array item

[Martin-Zeithaml]

configmgr extract feature is printing new line character for each key found. But for the array, it prints new line char twice, which is might be confusing for arrays with empty strings.

test:
  array1:
    - 'apple'
    - 'banana'
    - 'kiwi'
    - ''

Without fix

There are 2 empty lines at the end, which might be considered as 2 empty items:

apple
banana
kiwi

With fix

apple
banana
kiwi

Empty item, not last and with fix

test:
  array1:
    - 'apple'
    - 'banana'
    - 'kiwi'
    - ''
    - 'plum'

apple
banana
kiwi

plum

[JoeNemo]

Approved.

[sonarqubecloud]

Quality Gate failed

Failed conditions
B Maintainability Rating on New Code (required ≥ A)

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