Reduce noise generated by rules S121 and S134 for BOOST_FOREACH

#include <string>
#include <iostream>
#include <boost/foreach.hpp>

int main() {
    std::string hello( "Hello, world!" );
    BOOST_FOREACH( char ch, hello )
    {
        std::cout << ch;
    }
    return 0;
}

for (...; ...; ...) if (...) { } else /* S121 */ for (...; ...; ...) // expansion
// user code

#define DEBUG if (condition) print
DEBUG("msg");