[GRASS-git] [OSGeo/grass-addons] e0d664: i.fusion.hpf: fix "Illegal filename <.hpf>" warning

[Markus Neteler]

  Branch: refs/heads/grass7
  Home:   https://github.com/OSGeo/grass-addons
  Commit: e0d664f0234048e8cf5c7d20968fdd775eb04020
      https://github.com/OSGeo/grass-addons/commit/e0d664f0234048e8cf5c7d20968fdd775eb04020
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2022-03-17 (Thu, 17 Mar 2022)

  Changed paths:
    M src/imagery/i.fusion.hpf/i.fusion.hpf.py

  Log Message:
  -----------
  i.fusion.hpf: fix "Illegal filename <.hpf>" warning

backport of #713