minor, fix up ymd_add() and fill_strpdi() ... due to the recent addition of DT_MD as duration type.
minor, fix up ymd_add() and fill_strpdi() ...
due to the recent addition of DT_MD as duration type.

Signed-off-by: Sebastian Freundt <1f0829204b3475c52f714f96be4e7b39a87b6e74@ga-group.nl>

rudimeier/dateutils,rudimeier/dateutils,rudimeier/dateutils