[Bug 26050] New: winmm/mci tests show quite a few valgrind warnings

http://bugs.winehq.org/show_bug.cgi?id=26050

Summary: winmm/mci tests show quite a few valgrind warnings
           Product: Wine
           Version: 1.3.13
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: download, source, testcase
          Severity: minor
          Priority: P2
         Component: winmm&mci
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=33222)
 --> (http://bugs.winehq.org/attachment.cgi?id=33222)
valgrind log

Lots of:
 Use of uninitialised value of size 4
    at  wcstombs_sbcs (wctomb.c:155)
    by  wine_cp_wcstombs (wctomb.c:456)
    by  WideCharToMultiByte (locale.c:2010)
    by  MCI_UnmapMsgAtoW (mci.c:466)
    by  mciSendCommandA (mci.c:2285)
    by  test_openCloseWAVE (mci.c:419)
    by  func_mci (mci.c:1266)
    by  run_test (test.h:556)
    by  main (test.h:624)
  Uninitialised value was created by a client request
    at  mark_block_uninitialized (heap.c:208)
    by  initialize_block (heap.c:239)
    by  RtlAllocateHeap (heap.c:1702)
    by  MCI_MapMsgAtoW (mci.c:340)
    by  mciSendCommandA (mci.c:2277)
    by  test_openCloseWAVE (mci.c:419)
    by  func_mci (mci.c:1266)
    by  run_test (test.h:556)
    by  main (test.h:624)

and a few like:
 20 bytes in 1 blocks are definitely lost 
    at  notify_alloc (heap.c:254)
    by  RtlAllocateHeap (heap.c:1701)
    by  str_dup_upper (mci.c:85)
    by  mciSendStringW (mci.c:1341)
    by  mciSendStringA (mci.c:1590)
    by  test_openCloseWAVE (mci.c:560)
    by  func_mci (mci.c:1266)
    by  run_test (test.h:556)
    by  main (test.h:624)

full log attached