Fix minor style issues

[PlagueHO]

Pull Request (PR) description

Fix minor style issues identified by recent addition to custom PSSA tests.

This Pull Request (PR) fixes the following issues

Task list

• [x] Added an entry under the Unreleased section of the change log in the CHANGELOG.md. Entry should say what was changed, and how that affects users (if applicable).
• [ ] Resource documentation added/updated in README.md in resource folder.
• [ ] Resource parameter descriptions added/updated in schema.mof and comment-based help.
• [ ] Comment-based help added/updated.
• [ ] Localization strings added/updated in all localization files as appropriate.
• [ ] Examples appropriately added/updated.
• [ ] Unit tests added/updated. See DSC Resource Testing Guidelines.
• [ ] Integration tests added/updated (where possible). See DSC Resource Testing Guidelines.
• [x] New/changed code adheres to DSC Resource Style Guidelines and Best Practices.

@johlju - would you mind reviewing when you get the time?

---

This change is 

[codecov[bot]]

Codecov Report

Merging #48 into dev will not change coverage. The diff coverage is 25%.

@@        Coverage Diff        @@
##           dev   #48   +/-   ##
=================================
  Coverage   91%   91%           
=================================
  Files        4     4           
  Lines      777   777           
=================================
  Hits       712   712           
  Misses      65    65