L_HEAD
if (runflags & L_HEAD)
!(runflags & L_HEAD) && !(runflags & L_HEAD_DESCR))
if (!(runflags & L_HEAD) || (runflags & L_HEAD_DESCR))
if (!(runflags & L_HEAD) && !(runflags & L_HEAD_DESCR)) {
runflags |= L_HEAD;