RHOAIENG-3461 - Fix

[MarianMacik]

Fix for #214.

Forgot to include the quotes, my bad. Without them, there is only 1 argument (-n) and the condition is always true:

1 argument
    The expression is true if, and only if, the argument is not null.

Description

How Has This Been Tested?

Merge criteria:

• [x] The commits are squashed in a cohesive manner and have meaningful messages.
• [ ] Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• [x] The developer has manually tested the changes and verified that the changes work

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This pull-request has been approved by: grdryn, MarianMacik

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