[GRASS-dev] r.fill.gaps porting

[Maris Nartiss]

Hello,
it is nice to see porting of old addons.
As you added an example with LiDAR data - it is too large. Reduce its
size as default module help tab is much more narrow.
A bigger problem is the modules description - as I was checking the
output of module, it is reinterpolating all values instead of just
filling gaps. Thus the result is smoothened instead of just being
filled. This is in a sharp contrast to r.fill.nulls and thus should be
stressed out.

Thanks for a good work!
Māris.