fixup from PR comments

opm/simulators/timestepping/SimulatorReport.cpp

@@ -50,6 +50,7 @@ namespace Opm
           min_linear_iterations ( std::numeric_limits<unsigned int>::max() ),
           max_linear_iterations ( 0 ),
           converged(false),
+          well_group_control_changed(false),
           exit_status(EXIT_SUCCESS),
           global_time(0),
           timestep_length(0.0)

opm/simulators/timestepping/SimulatorReport.hpp

@@ -50,6 +50,7 @@ namespace Opm
 
 
         bool converged;
+        bool well_group_control_changed;
         int exit_status;
 
         double global_time;