Formatmessagev() of cstring replaces \n with \r\n

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C++

MFC

VisualC++

There is a function called FormatMessageV which is part of the CString class that is supposed to 'Format a message string using a variable argument list' according to MSDN. But other than the said operation, unfortunately it also replaces \n in the message with \r\n which I don't want.

What I have tried:

I tried to pass the ASCII value of LF instead of \n in the message but not surprisingly that didn't alter the routine's behavior. I couldn't come across anything online that mentions why this happens and how to prevent it.
Following is a sample code that demonstrates the issue.

#include <atlstr.h>
#include <iostream>
 
CString FormatV(LPCTSTR first, ...)
{ 
    va_list vaList = nullptr;
    CString buffer;
    va_start(vaList, first);
    buffer.FormatMessageV(first, &vaList); //this adds \r before \n
    va_end(vaList);
 
    return buffer;
}
 
int main() 
{
    CString text = L"\nint Fun(LPCTSTR commandLine, 
    UINT number)\n{ Perform(commandLine,% 1); \n }"; // Notice that 
                                                     // it has only \n s
    CString formattedText = FormatV(text, 1); //formattedText has \r\n s
    if (formattedText.Find(L'\r', 0) != -1)
        std::cout << "Has CR in it!";
}