in function ' warrsztoastr(..) ' of file \misc\win32\start.c
 
' for (args = 1, wch = arrsz; wch[0] || wch[1]; ++wch)'   is dangerous.
 
 because  'wch' may go out of memory range.
 
should we call 'wcslen(arrsz)' first. to get the string length?