minor symfony#15817 [Process] Stopped Autoruns when shelling on windows (rquadling)

This PR was merged into the 2.3 branch.

Discussion
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[Process] Stopped Autoruns when shelling on windows

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   |
| Fixed tickets |
| License       | MIT
| Doc PR        |

Stop autoruns when shelling on Windows.

Original PR was on symfony/process#9 (comment).

Commits
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bca6771 Update Process.php

Author: Tobion

src/Symfony/Component/Process/Process.php

@@ -232,7 +232,7 @@ public function start($callback = null)
         $commandline = $this->commandline;
 
         if ('\\' === DIRECTORY_SEPARATOR && $this->enhanceWindowsCompatibility) {
-            $commandline = 'cmd /V:ON /E:ON /C "('.$commandline.')';
+            $commandline = 'cmd /V:ON /E:ON /D /C "('.$commandline.')';
             foreach ($this->processPipes->getFiles() as $offset => $filename) {
                 $commandline .= ' '.$offset.'>'.ProcessUtils::escapeArgument($filename);
             }