Log Message:
update to 0.17
changes:
-based on DCRaw v 8.99
* Lens distortion corrections using lenfun. This feature is now fully
  implemented and enabled by default.
* Added a despeckling/denoising algorithm to solve issues with images taken
  under very difficult lighting conditions, like deep sea diving.
  It may be useful in other situations too. Patch by Frank van Maarseveen.
* Enabled hot pixel elimination by default.
* Calculate live histogram from working color-space instead of display
  color-space. Calculate live histogram from cropped area only.
  Based on patches by Konrad.
* Added auto-crop option.
* Allow upto 400% zoom.

pkgsrc change: the "lensfun" option is now enabled per default, as done
 upstream

approved by gdt