- Don't include an extra "*" in type of Output arguments.
- Fix the summary of environ_sizes_get.
- Put fs_rights_base and fs_rights_inherinting arguments on separate lines.
- Sort fd_prestat_dirname alphabetically before fd_prestat_get.
Whether the downsides in POSIX and existing application compatibility
outweigh the benefits of thread safety remains an open question.
Right now, this note is just documenting the current behavior.