test: rename test-regress-nodejsGH-1697

Rename the test appropriately alongside mentioning the subsystem
Also, make a few basic changes to make sure the test conforms
to the standard test structure

Refs: nodejs#19105
Refs: https://github.com/nodejs/node/blob/master/doc/guides/writing-tests.md#test-structure

test/sequential/test-regress-GH-1697.js → test/sequential/test-regress-net-response_size.js

@@ -21,6 +21,11 @@
 
 'use strict';
 const common = require('../common');
+
+// Make sure the net module's server doesn't throw an error when handling
+// responses that are either too long or too small (especially on windows)
+// https://github.com/nodejs/node-v0.x-archive/issues/1697
+
 const net = require('net');
 const cp = require('child_process');