expecting time_t == unsigned long is not portable

[obache]

In some source codes, it is expected that time_t == unsigned long:

cyrus-sasl/lib/saslutil.c

Lines 283 to 286 in 1f1c3db

	if (hostflag && conn->serverFQDN)
	snprintf(buf,maxlen, "<%lu.%lu@%s>", randnum, now, conn->serverFQDN);
	else
	snprintf(buf,maxlen, "<%lu.%lu>", randnum, now);

cyrus-sasl/plugins/cram.c

Line 138 in 1f1c3db

snprintf(ret,15,"%lu",t%(0xFFFFFF));

cyrus-sasl/plugins/otp.c

Lines 648 to 649 in 1f1c3db

	sprintf(data, "%s\t%04d\t%s\t%s\t%020ld",
	alg, seq, seed, buf, timeout);

cyrus-sasl/plugins/otp.c

Lines 709 to 710 in 1f1c3db

	sscanf(secret, "%s\t%04d\t%s\t%s\t%020ld",
	alg, seq, seed, buf, timeout);

But it is not portable, for example, 32bit arch (long=32bit) with 64bit time_t platforms,
and such mis-usage in printf/scanf cause unwanted memory access, and unwanted result.

[obache]

One more usage:

cyrus-sasl/saslauthd/saslcache.c

Line 177 in 1f1c3db

fprintf(stderr, "\"%lu\",", ref_bucket->created);