[GRASS-dev] patch for v.rast.stats to use multiple percentiles

[G. Allegri]

>> +   EXTRACOLS="first_quartile median third_quartile$PERCCOL"
>
>
> This should be
>
> EXTRACOLS="first_quartile median third_quartile $PERCCOL"

No, because $PERCCOL is built from iteration, so it contains an extra
space from the first loop.
Eventually it could be:
EXTRACOLS="first_quartile median third_quartile ${PERCCOL:1}"