use temp file to pass env on unix as well

the linux command line can be 32k long ... which might still be not
enough. well, in fact, it just makes the 'ps' output unreadable.

src/libs/utils/consoleprocess.h

@@ -43,10 +43,13 @@
 #include <windows.h>
 QT_BEGIN_NAMESPACE
 class QWinEventNotifier;
-class QTemporaryFile;
 QT_END_NAMESPACE
 #endif
 
+QT_BEGIN_NAMESPACE
+class QTemporaryFile;
+QT_END_NAMESPACE
+
 namespace Core {
 namespace Utils {
 
@@ -102,12 +105,12 @@ private:
     QProcess::ExitStatus m_appStatus;
     QLocalServer m_stubServer;
     QLocalSocket *m_stubSocket;
+    QTemporaryFile *m_tempFile;
 #ifdef Q_OS_WIN
     PROCESS_INFORMATION *m_pid;
     HANDLE m_hInferior;
     QWinEventNotifier *inferiorFinishedNotifier;
     QWinEventNotifier *processFinishedNotifier;
-    QTemporaryFile *m_tempFile;
 #else
     QProcess m_process;
     QByteArray m_stubServerDir;