[GRASS-git] [OSGeo/grass] 40f0d1: v.buffer: fix option name in error message (#2791)

[Anna Petrasova]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: 40f0d1971decf8bf7ab4f0795d5629622c6d82ae
      https://github.com/OSGeo/grass/commit/40f0d1971decf8bf7ab4f0795d5629622c6d82ae
  Author: Anna Petrasova <kratochanna at gmail.com>
  Date:   2023-01-30 (Mon, 30 Jan 2023)

  Changed paths:
    M vector/v.buffer/main.c

  Log Message:
  -----------
  v.buffer: fix option name in error message (#2791)

Fix of a leftover from 2009.