man/skyldav.1: macro sf not defined
man/skyldav.1: macro sf not defined

The correct macro name is nf not sf.

Signed-off-by: Heinrich Schuchardt <2cd7bb605d542f55cc27b85da62ad2c96ce31039@gmx.de>

xypron/skyldav,xypron/skyldav,xypron/skyldav,xypron/skyldav