tls: fix 'hostless' tls connection verification

And fix last failing tests

lib/tls.js

@@ -1238,7 +1238,7 @@ exports.connect = function(/* [port, host], options, cb */) {
   var sslcontext = crypto.createCredentials(options);
 
   convertNPNProtocols(options.NPNProtocols, this);
-  var hostname = options.servername || options.host,
+  var hostname = options.servername || options.host || 'localhost',
       pair = new SecurePair(sslcontext, false, true,
                             options.rejectUnauthorized === true ? true : false,
                             {

test/simple/test-tls-client-verify.js

@@ -25,6 +25,7 @@ if (!process.versions.openssl) {
 }
 
 
+var hosterr = 'Hostname/IP doesn\'t match certificate\'s altnames';
 var testCases =
     [{ ca: ['ca1-cert'],
        key: 'agent2-key',
@@ -101,10 +102,12 @@ function testServers(index, servers, clientOptions, cb) {
 
     console.error('connecting...');
     var client = tls.connect(clientOptions, function() {
+      var authorized = client.authorized ||
+                       client.authorizationError === hosterr;
 
-      console.error('expected: ' + ok + ' authed: ' + client.authorized);
+      console.error('expected: ' + ok + ' authed: ' + authorized);
 
-      assert.equal(ok, client.authorized);
+      assert.equal(ok, authorized);
       server.close();
     });