Fix test with gcc7

tests/testDump.c

@@ -40,7 +40,7 @@ void dump_mapper(void *map_data, int num_elements, void *extra_data) {
   size_t offset;
   char *out_string = dump_get(d, 7, &offset);
   char out_buff[8];
-  snprintf(out_buff, 8, "%06zi\n", offset / 7);
+  snprintf(out_buff, 8, "%06zi\n", (offset / 7) % 1000000);
   memcpy(out_string, out_buff, 7);
 }
 

tests/testInteractions.c

@@ -673,6 +673,7 @@ int main(int argc, char *argv[]) {
         break;
       case 's':
         sscanf(optarg, "%lf", &spacing);
+	break;
       case 'n':
         sscanf(optarg, "%zu", &count);
         break;