PS_FST_FFLAG_APPEND
{ O_APPEND, PS_FST_FFLAG_APPEND },
{ KF_FLAG_APPEND, PS_FST_FFLAG_APPEND },
{PS_FST_FFLAG_APPEND, 'a'},
xo_emit("{d:/%s}", fst->fs_fflags & PS_FST_FFLAG_APPEND ?
if (fst->fs_fflags & PS_FST_FFLAG_APPEND)