hoon: use +dvr instead of +div/+mod in |co helpers
^- tape
?: &(=(0 hol) =(0 min))
rep
- =+ [rad=(mod hol bas) dar=(div hol bas)]
+ =/ [dar=@ rad=@] (dvr hol bas)
%= $
min ?:(=(0 min) 0 (dec min))
hol dar
^- {tape @}
?: &(=(0 hol) =(0 min))
[rep cou]
- =+ [rad=(mod hol bas) dar=(div hol bas)]
+ =/ [dar=@ rad=@] (dvr hol bas)
%= $
min ?:(=(0 min) 0 (dec min))
hol dar
