change header macro definition

algorithms/hungarian.h

@@ -27,8 +27,8 @@
 // which in turn is based on
 //   http://www.public.iastate.edu/~ddoty/HungarianAlgorithm.html.
 
-#ifndef ALGORITHMS_HUNGARIAN_H_
-#define ALGORITHMS_HUNGARIAN_H_
+#ifndef OR_TOOLS_ALGORITHMS_HUNGARIAN_H_
+#define OR_TOOLS_ALGORITHMS_HUNGARIAN_H_
 
 #include "base/util.h"
 #include <vector>
@@ -45,4 +45,4 @@ void MaximizeLinearAssignment(const vector<vector<double> >& cost,
 
 }  // namespace operations_research
 
-#endif  // ALGORITHMS_HUNGARIAN_H_
+#endif  // OR_TOOLS_ALGORITHMS_HUNGARIAN_H_

algorithms/knapsack_solver.h

@@ -54,8 +54,8 @@
 //   int64 profit = solver.Solve();
 
 
-#ifndef ALGORITHMS_KNAPSACK_SOLVER_H_
-#define ALGORITHMS_KNAPSACK_SOLVER_H_
+#ifndef OR_TOOLS_ALGORITHMS_KNAPSACK_SOLVER_H_
+#define OR_TOOLS_ALGORITHMS_KNAPSACK_SOLVER_H_
 
 #include <math.h>
 #include <queue>
@@ -567,4 +567,4 @@ class KnapsackGenericSolver : public BaseKnapsackSolver {
 #endif  // SWIG
 }  // namespace operations_research
 
-#endif  // ALGORITHMS_KNAPSACK_SOLVER_H_
+#endif  // OR_TOOLS_ALGORITHMS_KNAPSACK_SOLVER_H_