[GRASS-git] [OSGeo/grass-addons] fcbb27: r.bioclim: End with success when precipitation is ...

[Vaclav Petras]

  Branch: refs/heads/grass8
  Home:   https://github.com/OSGeo/grass-addons
  Commit: fcbb27b383d61aab40977060f1d2a6ca72184a94
      https://github.com/OSGeo/grass-addons/commit/fcbb27b383d61aab40977060f1d2a6ca72184a94
  Author: Vaclav Petras <wenzeslaus at gmail.com>
  Date:   2023-04-13 (Thu, 13 Apr 2023)

  Changed paths:
    M src/raster/r.bioclim/r.bioclim.py

  Log Message:
  -----------
  r.bioclim: End with success when precipitation is missing (#886)

The precipitation parameter is optional, so the process return code should be 0, not 1, as no error occurred.

A return statement is more appropriate here than a direct exit call because this is a main function. Using return is consistent with the other branch which ends with the end of the function (an implicit return).

Remove sys import which would be unused.