完全改进：the only noteworthy fix is a seccomp sandbox policy fix which stops session crashes when listing large directories whilst logged in as a real local user.
- Fix some seccomp related build errors on certain CentOS and Debian versions. - Seccomp filter sandbox: missing munmap() -- oops. Did you know that qsort() opens and maps /proc/meminfo but only for larger item counts? - Seccomp filter sandbox: deny socket() gracefully for text_userdb_names. - Fix various NULL crashes with nonsensical config settings. Noted by Tianyin Xu <email@example.com>. - Force cast to unsigned char in is* char functions. - Fix harmless integer issues in strlist.c. - Started on a (possibly ill-advised?) crusade to compile cleanly with Wconversion. Decided to suspend the effort half-way through.