Fix typo when loading fonts

bin/eedmenu.in

 host=$(hostname -s)
 nb="$(iniread -p style.color.nbg)"
 nf="$(iniread -p style.color.nfg)"
-sb="$(iniread -p style.color.sng)"
+sb="$(iniread -p style.color.sbg)"
 sf="$(iniread -p style.color.sfg)"
 fn="$(iniread -p style.font)"
 fn=${fn:--*-terminus-medium-r-*-*-16-*-*-*-*-*-*-*}