Age of Conan Debugger Check

int sub_A375C0(char *Format, ...)
{
  va_list va; // [sp+80Ch] [bp+Ch]@1
  char ST1C_1_0; // ST1C_1@0
  int v3; // eax@1
  char *v5; // eax@3
  const CHAR OutputString; // [sp+0h] [bp-800h]@1
  char Dest[2037]; // [sp+9h] [bp-7F7h]@1
  char v8; // [sp+7FEh] [bp-2h]@4
  char v9; // [sp+7FFh] [bp-1h]@4

  va_start(va, Format);
  strncpy((char *)&OutputString, "Cheetah: ", 9u);
  v3 = _vsnprintf(Dest, 0x7F5u, Format, va);
  if ( v3 == 2037 || v3 == -1 )
  {
    v8 = 10;
    v9 = 0;
  }
  else
  {
    v5 = &Dest[v3];
    *v5 = 10;
    *(v5 + 1) = 0;
  }
  if ( IsDebuggerPresent() )
    OutputDebugStringA(&OutputString);
  return sub_48B400("Cheetah", Dest, ST1C_1_0);
}