Script erroneously name hello world

hello_world.cpp

File Edit Options Buffers Tools C++ Help                                                                                                                                                                                                      
#include <hpx/hpx_init.hpp>                                                                                                                                                                                                                   
#include <hpx/include/iostreams.hpp>                                                                                                                                                                                                          
                                                                                                                                                                                                                                              
int hpx_main()                                                                                                                                                                                                                                
{                                                                                                                                                                                                                                             
    hpx::cout << hpx::get_num_localities().get() << hpx::endl;                                                                                                                                                                                
    return hpx::finalize();                                                                                                                                                                                                                   
}                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                              
int main(int argc, char* argv[])                                                                                                                                                                                                              
{                                                                                                                                                                                                                                             
  // Initialize and run HPX.                                                                                                                                                                                                                  
  return hpx::init(argc, argv);                                                                                                                                                                                                               
}