Fix the grammar of a comment.

diff --git a/tests/serialization/dof_handler_01.cc b/tests/serialization/dof_handler_01.cc
index bd3ffda78128b13eef18761a7dfc78edac0b2d8b..6fb9e6d63695bafb1129e2d20f24def47d54e7a9 100644 (file)
--- a/tests/serialization/dof_handler_01.cc
+++ b/tests/serialization/dof_handler_01.cc
@@ -169,7 +169,7 @@ void test ()
   dof_1.distribute_dofs (fe);
   dof_2.distribute_dofs (fe);
 
-  // right now, both DoFHandlers are the same. Renumber one of the them
+  // right now, both DoFHandlers are the same. Renumber one of them
   DoFRenumbering::Cuthill_McKee (dof_1);
 
   verify (dof_1, dof_2);