[GRASS-git] [OSGeo/grass-addons] 94b4e2: r.in.pdal addon: fix undefined var

[Markus Neteler]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-addons
  Commit: 94b4e26c938d745298f7e1b5e7aa88d4dc899097
      https://github.com/OSGeo/grass-addons/commit/94b4e26c938d745298f7e1b5e7aa88d4dc899097
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2019-10-14 (Mon, 14 Oct 2019)

  Changed paths:
    M grass7/raster/r.in.pdal/r.in.pdal.py

  Log Message:
  -----------
  r.in.pdal addon: fix undefined var

define variable for the case that `pdal_cmd` is not defined by user