Run clang-format against cpp (#4358)

Code/Numerics/Alignment/AlignPoints.cpp

@@ -350,5 +350,5 @@ double AlignPoints(const RDGeom::Point3DConstPtrVect &refPoints,
   trans.SetTranslation(move);
   return ssr;
 }
-}
-}
+}  // namespace Alignments
+}  // namespace RDNumeric

Code/Numerics/Alignment/Wrap/rdAlignment.cpp

@@ -160,8 +160,8 @@ PyObject *AlignPointPairs(python::object refPoints, python::object probePoints,
   PyTuple_SetItem(resTup, 1, PyArray_Return(res));
   return resTup;
 }
-}
-}
+}  // namespace Alignments
+}  // namespace RDNumeric
 
 BOOST_PYTHON_MODULE(rdAlignment) {
   rdkit_import_array();

Code/Numerics/EigenSolvers/PowerEigenSolver.cpp

@@ -99,5 +99,5 @@ bool powerEigenSolver(unsigned int numEig, DoubleSymmMatrix &mat,
   }
   return converged;
 }
-}
-}
+}  // namespace EigenSolvers
+}  // namespace RDNumeric