[GRASS-git] [OSGeo/grass] 31fe6e: Add missing #include <stdlib.h> to display/d.where...

[Attila Oláh]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass
  Commit: 31fe6e997f1d80a63b1dbfed33a0a0420cdc38aa
      https://github.com/OSGeo/grass/commit/31fe6e997f1d80a63b1dbfed33a0a0420cdc38aa
  Author: Attila Oláh <atl at google.com>
  Date:   2021-02-24 (Wed, 24 Feb 2021)

  Changed paths:
    M display/d.where/main.c

  Log Message:
  -----------
  Add missing #include <stdlib.h> to display/d.where/main.c. (#1377)

It is requiref for `exit()` and `EXIT_SUCCESS`/`EXIT_FAILURE`.