[Bug 21758] New: another CommandLineToArgvW bug with empty lpCmdLine

http://bugs.winehq.org/show_bug.cgi?id=21758

Summary: another CommandLineToArgvW bug with empty lpCmdLine
           Product: Wine
           Version: 1.1.38
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: shell32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

CommandLineToArgvW() with empty lpCmdLine truncates result to 6 characters.

http://source.winehq.org/git/wine.git/?a=blob;f=dlls/shell32/shell32_main.c;...

Looks like some bug in GetModuleFileName() was fixed and this broke
CommandLineToArgvW

Test: (builds with mingw)
*************************************
#include <windows.h>
#include <stdio.h>

int main()
{
    int i, numargs;
    for (i = 0; i < numargs; i++)
    {
        printf("argv[%d]: %S\n", i, CommandLineToArgvW(L"", &numargs)[i]);
    }
    return 0;
}
*************************************
result:
*************************************
[il@archvm ~]$ pwd
/home/il
[il@archvm ~]$ wine commandlinetoargv.exe 
argv[0]: Z:\hom
[il@archvm ~]$