test: apply camelCase in test-net-reconnect-error

Rename two idnetifiers that were snake_case rather than camelCase.

Signed-off-by: Rich Trott <rtrott@gmail.com>

PR-URL: #32120
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>

Author: Trott

test/sequential/test-net-reconnect-error.js

@@ -24,24 +24,24 @@ const common = require('../common');
 const net = require('net');
 const assert = require('assert');
 const N = 20;
-let client_error_count = 0;
-let disconnect_count = 0;
+let clientErrorCount = 0;
+let disconnectCount = 0;
 
 const c = net.createConnection(common.PORT);
 
 c.on('connect', common.mustNotCall('client should not have connected'));
 
 c.on('error', common.mustCall((e) => {
-  client_error_count++;
+  clientErrorCount++;
   assert.strictEqual(e.code, 'ECONNREFUSED');
 }, N + 1));
 
 c.on('close', common.mustCall(() => {
-  if (disconnect_count++ < N)
+  if (disconnectCount++ < N)
     c.connect(common.PORT); // reconnect
 }, N + 1));
 
 process.on('exit', function() {
-  assert.strictEqual(disconnect_count, N + 1);
-  assert.strictEqual(client_error_count, N + 1);
+  assert.strictEqual(disconnectCount, N + 1);
+  assert.strictEqual(clientErrorCount, N + 1);
 });