PVS-Studio warning V523 for UnrealEngine4

FString FPaths::CreateTempFilename( const TCHAR* Path,
  const TCHAR* Prefix, const TCHAR* Extension )
{
  ....
  const int32 PathLen = FCString::Strlen( Path );
  if( PathLen > 0 && Path[ PathLen - 1 ] != TEXT('/') )
  {
    UniqueFilename =
      FString::Printf( TEXT("%s/%s%s%s"), Path, Prefix,
                       *FGuid::NewGuid().ToString(), Extension );
  }
  else
  {
    UniqueFilename =
      FString::Printf( TEXT("%s/%s%s%s"), Path, Prefix,
                       *FGuid::NewGuid().ToString(), Extension );
  }
  ....
}

This suspicious code was found in UnrealEngine4 project by PVS-Studio static code analyzer.
Warning message is:
V523 The 'then' statement is equivalent to the 'else' statement. paths.cpp 703

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/