tar: fix crash on broken tar file.
gsf_infile_tar_seek (GsfInput *input, gsf_off_t offset, GSeekType whence)
{
	(void)input;
	(void)offset;
	(void)whence;
	return FALSE;
}

gsf_infile_tar_seek (GsfInput *input, gsf_off_t offset, GSeekType whence)
{
	(void)input;
	(void)offset;
	(void)whence;
	return FALSE;
}
