[GRASS-git] [OSGeo/grass] efeffd: i.vi: fix check input 'red' param arg (#1353)

[Tomas Zigo]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: efeffd00665b6cf5b82012e35cc2d1a9ff71698b
      https://github.com/OSGeo/grass/commit/efeffd00665b6cf5b82012e35cc2d1a9ff71698b
  Author: Tomas Zigo <50632337+tmszi at users.noreply.github.com>
  Date:   2021-02-17 (Wed, 17 Feb 2021)

  Changed paths:
    M imagery/i.vi/main.c

  Log Message:
  -----------
  i.vi: fix check input 'red' param arg (#1353)