Add missing va_end calls

[MaddTheSane]

Pull Request Type

• [ ] GitHub Workflow changes
• [ ] Documentation or Wiki changes
• [ ] Build and Dependency changes
• [x] Runtime changes
  • [ ] Render changes
  • [ ] Audio changes
  • [ ] Input changes
  • [ ] Network changes
  • [X] Other changes

Description

This adds missing va_end calls to DallasFuncs.cpp

Checklist

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