remove spaces

dune/solvers/iterationsteps/projectedblockgsstep.cc

@@ -5,7 +5,7 @@ template<class MatrixType, class VectorType>
 inline
 void ProjectedBlockGSStep<MatrixType, VectorType>::iterate()
 {
-	assert(hasObstacle_!=nullptr);
+    assert(hasObstacle_!=nullptr);
 	
     if (hasObstacle_->size()!= (unsigned int)this->x_->size())
         DUNE_THROW(SolverError, "Size of hasObstacle (" << hasObstacle_->size()