Pullup ticket #5477 - requested by sevan
security/sudo: security fix

Revisions pulled up:
- security/sudo/Makefile                                        1.155
- security/sudo/distinfo                                        1.92

---
  Module Name:    pkgsrc
  Committed By:  spz
  Date:          Wed Jun  7 05:41:53 UTC 2017

  Modified Files:
          pkgsrc/security/sudo: Makefile distinfo

  Log Message:
  update to version 1.8.20p2

  upstream changelog:
  2017-05-31  Todd C. Miller  <Todd.Miller%courtesan.com@localhost>

          * NEWS, configure, configure.ac:
          Sudo 1.8.20p2
          [47836f4c9834]

          * src/ttyname.c:
          A command name may also contain newline characters so read
          /proc/self/stat until EOF. It is not legal for /proc/self/stat to
          contain embedded NUL bytes so treat the file as corrupt if we see
          any. With help from Qualys.

          This is not exploitable due to the /dev traversal changes in sudo
          1.8.20p1 (thanks Solar!).
          [15a46f4007dd]

  2017-05-30  Todd C. Miller  <Todd.Miller%courtesan.com@localhost>

          * src/ttyname.c:
          Use /proc/self consistently on Linux. As far as I know, only AIX
          doesn't support /proc/self.
          [6f3d9816541b]

(bsiegert)