[Bug 36656] New: valgrind shows an unintialized write in comdlg32/tests/itemdlg.c

https://bugs.winehq.org/show_bug.cgi?id=36656

Bug ID: 36656
           Summary: valgrind shows an unintialized write in
                    comdlg32/tests/itemdlg.c
           Product: Wine
           Version: 1.7.19
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase, valgrind
          Severity: minor
          Priority: P2
         Component: comdlg32
          Assignee: [e-mail]
          Reporter: [e-mail]

==9059== Syscall param write(buf) points to uninitialised byte(s)
==9059==    at 0x4227CF3: __write_nocancel (syscall-template.S:81)
==9059==    by 0x7BC7FD7E: send_request (server.c:198)
==9059==    by 0x7BC7FF9D: wine_server_call (server.c:294)
==9059==    by 0x547E7B0: set_window_pos (winpos.c:2087)
==9059==    by 0x547ED2F: USER_SetWindowPos (winpos.c:2208)
==9059==    by 0x547F8F9: EndDeferWindowPos (winpos.c:2428)
==9059==    by 0x5F54904: update_layout (itemdlg.c:1271)
==9059==    by 0x5F57034: IFileDialog2_fnSetOkButtonLabel (itemdlg.c:1959)
==9059==    by 0x4CAE310: test_basics (shobjidl.h:13994)
==9059==    by 0x4CB7457: func_itemdlg (itemdlg.c:1932)
==9059==    by 0x4CBA7B5: run_test (test.h:584)
==9059==    by 0x4CBABA4: main (test.h:654)
==9059==  Address 0x4dcf46c is on thread 1's stack
==9059==  Uninitialised value was created by a stack allocation
==9059==    at 0x5F54001: update_layout (itemdlg.c:1102)
==9059==