test: replace third argument with comment in strict equals

PR-URL: #21603
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: developerdavo

test/parallel/test-tls-env-bad-extra-ca.js

@@ -29,7 +29,8 @@ let stderr = '';
 
 fork(__filename, opts)
   .on('exit', common.mustCall(function(status) {
-    assert.strictEqual(status, 0, 'client did not succeed in connecting');
+    // Check that client succeeded in connecting.
+    assert.strictEqual(status, 0);
   }))
   .on('close', common.mustCall(function() {
     // TODO(addaleax): Make `SafeGetenv` work like `process.env`