merovingian: only absolutise dbfarm if it isn't yet already
merovingian: only absolutise dbfarm if it isn't yet already

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb