In PHP 7.2 the session_start() error messages have changed a bit (#359)

See PHP Bug 71038 for details https://bugs.php.net/bug.php?id=71038
Added PHP 7.2.0alpha2 to Travis CI matrix

Author: sodabrew

Diff for: .travis.yml

@@ -3,8 +3,9 @@ dist: trusty
 
 language: php
 php:
-    - 7.0
+    - 7.2.0alpha2
     - 7.1
+    - 7.0
 
 matrix:
     fast_finish: true

Diff for: package.xml

@@ -113,6 +113,7 @@ Fixes
     <file role='test' name='session_badconf_locktime.phpt'/>
     <file role='test' name='session_badconf_prefix.phpt'/>
     <file role='test' name='session_badconf_servers.phpt'/>
+    <file role='test' name='session_badconf_servers-php72.phpt'/>
     <file role='test' name='session_basic.phpt'/>
     <file role='test' name='session_basic2.phpt'/>
     <file role='test' name='session_basic3.phpt'/>

Diff for: tests/session_badconf_servers-php72.phpt

@@ -0,0 +1,30 @@
+--TEST--
+Session bad configurations, invalid save path (server list)
+--SKIPIF--
+<?php
+include dirname(__FILE__) . "/skipif.inc";
+if (!Memcached::HAVE_SESSION) print "skip";
+if (PHP_VERSION_ID < 70200) print "skip";
+?>
+--INI--
+session.save_handler = memcached
+--FILE--
+<?php
+include dirname (__FILE__) . '/config.inc';
+ini_set ('session.save_path', MEMC_SERVER_HOST . ':' . MEMC_SERVER_PORT);
+
+error_reporting(0);
+function handler($errno, $errstr) {
+	echo "$errstr\n";
+}
+
+set_error_handler('handler', E_ALL);
+
+ini_set('memcached.sess_prefix', 'memc.sess.key.');
+ini_set('session.save_path', '');
+session_start();
+session_write_close();
+
+--EXPECT--
+session_start(): failed to parse session.save_path
+session_start(): Failed to initialize storage module: memcached (path: )

Diff for: tests/session_badconf_servers.phpt

@@ -1,9 +1,10 @@
 --TEST--
 Session bad configurations, invalid save path (server list)
 --SKIPIF--
-<?php 
-include dirname(__FILE__) . "/skipif.inc"; 
+<?php
+include dirname(__FILE__) . "/skipif.inc";
 if (!Memcached::HAVE_SESSION) print "skip";
+if (PHP_VERSION_ID > 70100) print "skip";
 ?>
 --INI--
 session.save_handler = memcached
@@ -24,5 +25,5 @@ ini_set('session.save_path', '');
 session_start();
 session_write_close();
 
---EXPECTF--
+--EXPECT--
 session_start(): failed to parse session.save_path