SqlServerDsc: Minor changes too schema property descriptions

[johlju]

Pull Request (PR) description

• SqlServerDsc
  • Minor changes too schema property descriptions to generate documentation
    correctly.

This Pull Request (PR) fixes the following issues

None.

Task list

• Added an entry to the change log under the Unreleased section of the
  file CHANGELOG.md. Entry should say what was changed and how that
  affects users (if applicable), and reference the issue being resolved
  (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, 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 Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

Merging #1577 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master   #1577   +/-   ##
======================================
  Coverage      98%     98%           
======================================
  Files          37      37           
  Lines        6074    6074           
======================================
  Hits         5970    5970           
  Misses        104     104           

[johlju]

Reviewed 11 of 13 files at r1, 2 of 2 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved