nazca #279605 debian package should recommend python-dateutil [validation pending]

If installed, it provides the ability to parse literal dates and "block" them

prioritynormal
typebug
done in0.7.1
load0.100
load left0.000
closed by#eb99225b4167 [debian] recommend python-dateutil (closes #279605)
patch[debian] recommend python-dateutil (closes #279605) [applied]