mksh 59c-5 source package in Ubuntu

Changelog

mksh (59c-5) unstable; urgency=medium

  * Apply targeted fixes, intended for bullseye:
    - [tg] Plug some memory leaks
    - [tg] Harden conversion of imported variables to integer, like
      Perl “taint”: imported variables will now lose the value when
      converting to integer but they are not purely numeric
      (CVE-2019-14868 was a similar issue in AT&T ksh); honour
      -o posix for leading-zero as octal, though (but continue not
      when importing array indicēs)
    - [tg] Fix lexer token state corruption when reading new input;
      makes evaluate-region editing command actually useful
    - [tg] Fix proper escaping/quoting and tab completion for tilde,
      curly braces and \x02, either escaped or not
    Note: patches are reduced to minimum change for bullseye
  * Rebuild for outdated Built-Using

 -- Thorsten Glaser <email address hidden>  Sun, 02 May 2021 23:52:52 +0200