[Bug 26128] New: shell32/appbar tests shows a valgrind warning

http://bugs.winehq.org/show_bug.cgi?id=26128

Summary: shell32/appbar tests shows a valgrind warning
           Product: Wine
           Version: 1.3.13
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: download, source, testcase
          Severity: normal
          Priority: P2
         Component: shell32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Syscall param writev(vector[...]) points to uninitialised byte(s)
    at  writev (in /lib/libc-2.11.2.so)
    by  send_request (server.c:209)
    by  wine_server_call (server.c:290)
    by  put_message_in_queue (message.c:2923)
    by  send_inter_thread_message (message.c:2991)
    by  send_message (message.c:3059)
    by  SendMessageTimeoutW (message.c:3125)
    by  SHAppBarMessage (appbar.c:142)
    by  test_setpos (appbar.c:222)
    by  func_appbar (appbar.c:442)
    by  run_test (test.h:556)
    by  main (test.h:624)
  Address 0x7f23fa40 is on thread 1's stack
  Uninitialised value was created by a stack allocation
    at  test_setpos (appbar.c:203)