Fix #46, Remove unnecessary parentheses around return values.

[thnkslprpt]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution
Fixes #46
Removes parentheses in return statements in CS that return a single value/term.
This is aligns these return statements with the predominant style of cFS.

Testing performed
None, prior to submission of the pull request.

Expected behavior changes
No impact on behavior.

Contributor Info - All information REQUIRED for consideration of pull request
@thnkslprpt