VTERM_PROP_CURSORSHAPE_UNDERLINE
settermprop_int (state, VTERM_PROP_CURSORSHAPE, VTERM_PROP_CURSORSHAPE_UNDERLINE);
settermprop_int (state, VTERM_PROP_CURSORSHAPE, VTERM_PROP_CURSORSHAPE_UNDERLINE);
case VTERM_PROP_CURSORSHAPE_UNDERLINE: reply = 4; break;