Correct srun verbose logging when int > 32-bits long

src/srun/libsrun/opt.c

@@ -2224,16 +2224,16 @@ static char *print_constraints()
 {
 	char *buf = xstrdup("");
 
-	if (opt.pn_min_cpus > 0)
+	if (opt.pn_min_cpus != NO_VAL)
 		xstrfmtcat(buf, "mincpus-per-node=%d ", opt.pn_min_cpus);
 
-	if (opt.pn_min_memory > 0)
+	if (opt.pn_min_memory != NO_VAL)
 		xstrfmtcat(buf, "mem-per-node=%dM ", opt.pn_min_memory);
 
-	if (opt.mem_per_cpu > 0)
+	if (opt.mem_per_cpu != NO_VAL)
 		xstrfmtcat(buf, "mem-per-cpu=%dM ", opt.mem_per_cpu);
 
-	if (opt.pn_min_tmp_disk > 0)
+	if (opt.pn_min_tmp_disk != NO_VAL)
 		xstrfmtcat(buf, "tmp-per-node=%ld ", opt.pn_min_tmp_disk);
 
 	if (opt.contiguous == true)