Update fe_values.cc

diff --git a/source/fe/fe_values.cc b/source/fe/fe_values.cc
index 338c42fac6595f6aa242f255d303996e6d90dd3f..16b2f18af702c563143f1fcb0bdc72845f12dbb2 100644 (file)
--- a/source/fe/fe_values.cc
+++ b/source/fe/fe_values.cc
@@ -3615,8 +3615,9 @@ FEValues<dim,spacedim>::initialize (const UpdateFlags update_flags)
   if (dim != spacedim-1)
     Assert ((update_flags & update_normal_vectors) == false,
             ExcMessage ("You can only pass the 'update_normal_vectors' "
-                        "flag to FEFaceValues or FESubfaceValues objects "
-                        "unless the triangulation is embedded in a higher "
+                        "flag to FEFaceValues or FESubfaceValues objects, "
+                        "but not to an FEValues object unless the "
+                        "triangulation it refers to is embedded in a higher "
                         "dimensional space."));
 
   const UpdateFlags flags = this->compute_update_flags (update_flags);