Re: resbin: don't pass NULL as printf %s arg

Commit c6c8d0b82175 went completely the wrong way.  "key" needs to be
NULL as that reads a different type of data.

	PR 33244
	* resbin.c (get_version_header): Don't pass a NULL key on to
	toosmall.
	(bin_to_res_version): Restore NULL key cases.