b6372b3af3
Reduce the usage of raw `char *` and `std::string` in a variety of places where they weren't needed. General notes: - Anything used for output or reporting needs to be `StringRefNull` - No additional strlen calls should be incurred beyond what was already present - Memory lifetime is still valid according to ASAN Pull Request: https://projects.blender.org/blender/blender/pulls/137747