Function get_tmp_template

t/unit-tests/u-reftable-stack.c:61–68

* Work linenumber into the tempdir, so we can see which tests forget to * cleanup. */

 * cleanup.
 */
static char *get_tmp_template(int linenumber)
{
	const char *tmp = getenv("TMPDIR");
	static char template[1024];
	snprintf(template, sizeof(template) - 1, "%s/stack_test-%d.XXXXXX",
		 tmp ? tmp : "/tmp", linenumber);
	return template;
}

static char *get_tmp_dir(int linenumber)
{