Fix deleter function pointer. [A change in clang](https://github.com/llvm/llvm-project/commit/327c64cd6a69e35fe1351d4f5e89cd235e34ccc8) makes the compiler start complaining about the passed fn pointer to the unique_ptr constructor. AFAIU, there are overload resolution issues when trying to get the pointer to `operator delete` in the way it is done in the code now. PiperOrigin-RevId: 797286481
Riegeli/records is a file format for storing a sequence of string records, typically serialized protocol buffers. It supports dense compression, fast decoding, seeking, detection and optional skipping of data corruption, filtering of proto message fields for even faster decoding, and parallel encoding.
See documentation.
Riegeli file format will only change in a backward compatible way (i.e. future readers will understand current files, but current readers might not understand files using future features).
Riegeli C++ API might change in incompatible ways.