[GRASS-git] [OSGeo/grass-addons] 2be521: Set null outside direction map

[Huidae Cho]

  Branch: refs/heads/master
  Home:   https://github.com/OSGeo/grass-addons
  Commit: 2be521a22e472a4334d18a90219727e35067f738
      https://github.com/OSGeo/grass-addons/commit/2be521a22e472a4334d18a90219727e35067f738
  Author: Huidae Cho <grass4u at gmail.com>
  Date:   2020-05-04 (Mon, 04 May 2020)

  Changed paths:
    M grass7/raster/r.accumulate/accumulate.c
    M grass7/raster/r.accumulate/global.h
    M grass7/raster/r.accumulate/main.c
    M grass7/raster/r.accumulate/raster.c
    M grass7/raster/r.accumulate/subaccumulate.c

  Log Message:
  -----------
  Set null outside direction map