Fix a couple of out-of-bounds warnings found by Clang.

[MaddTheSane]

Pull Request Type

• GitHub Workflow changes
• Documentation or Wiki changes
• Build and Dependency changes
• Runtime changes
  • Render changes
  • Audio changes
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Description

This fixes a few out-of-bounds warnings for c arrays found during compilation on Clang 15.

Checklist

• I have tested my changes locally and verified that they work as intended.
• I have documented any new or modified functionality.
• I have reviewed the changes to ensure they do not introduce any unnecessary complexity or duplicate code.
• I understand that by submitting this pull request, I am agreeing to license my contributions under the project's license.

Additional Comments

Three of these are C strings that were adding a null character one byte longer than the string. The fourth is clearing an array one passed the end of the array.