[Cleanup] Do not depend on boost needlessly

src/one-body-sample.cc

@@ -29,8 +29,6 @@
 #include <fstream>
 #include <iostream>
 
-#include <boost/format.hpp>
-
 #include <dune/common/bitsetvector.hh>
 #include <dune/common/exceptions.hh>
 #include <dune/common/fmatrix.hh>
@@ -346,7 +344,7 @@ int main(int argc, char *argv[]) {
         parset.get<Solver::VerbosityMode>("v.solver.verbosity");
     for (size_t timeStep = 1; timeStep <= timeSteps; ++timeStep) {
       if (printProgress)
-        std::cout << boost::format("%7d ") % timeStep << " " << std::flush;
+        std::cout << std::setw(7) << timeStep << " " << std::flush;
 
       stateUpdater->nextTimeStep();
       timeSteppingScheme->nextTimeStep();