sdtp->options.  Whatever case that was intended to handle is
	probably lost in the mists of time, but sdtp->options isn't set
	anywhere, and I think that has been true for a long time.
	* cvs.h (struct stickydirtag): remove options field.
	* entries.c (freesdt): Don't free ->options.
	* sanity.sh (binfiles): New tests binfiles-13a* test for above fix.