[GRASS-git] [OSGeo/grass] 33b9a6: v.surf.idw: less confusing error message (#1332)

[Markus Neteler]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: 33b9a60b2cb36fc603351a6cf9fb677310c0d73d
      https://github.com/OSGeo/grass/commit/33b9a60b2cb36fc603351a6cf9fb677310c0d73d
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2021-02-14 (Sun, 14 Feb 2021)

  Changed paths:
    M vector/v.surf.idw/main.c

  Log Message:
  -----------
  v.surf.idw: less confusing error message (#1332)