Merge branch '3.2'

* 3.2:
  [Process] Fix ignoring of bad env var names

src/Symfony/Component/Process/Process.php

@@ -1137,6 +1137,11 @@ class Process implements \IteratorAggregate
      */
     public function setEnv(array $env)
     {
+        // Process can not handle env values that are arrays
+        $env = array_filter($env, function ($value) {
+            return !is_array($value);
+        });
+
         $this->env = $env;
 
         return $this;

src/Symfony/Component/Process/Tests/ProcessTest.php

@@ -1385,6 +1385,18 @@ class ProcessTest extends TestCase
         $this->assertSame('456', $p2->getOutput());
     }
 
+    public function testSetBadEnv()
+    {
+        $process = $this->getProcess('echo hello');
+        $process->setEnv(array('bad%%' => '123'));
+        $process->inheritEnvironmentVariables(true);
+
+        $process->run();
+
+        $this->assertSame('hello'.PHP_EOL, $process->getOutput());
+        $this->assertSame('', $process->getErrorOutput());
+    }
+
     public function testEnvIsInherited()
     {
         $process = $this->getProcessForCode('echo serialize($_SERVER);', null, array('BAR' => 'BAZ'));