Step-81: make doxygen happy

diff --git a/examples/step-81/step-81.cc b/examples/step-81/step-81.cc
index 7230e97aaecc190ced0f3d77f8d964488e76adb5..ee39e7dcac1f0203e12fcdea1dee67fb6c96af32 100644 (file)
--- a/examples/step-81/step-81.cc
+++ b/examples/step-81/step-81.cc
@@ -436,8 +436,7 @@ namespace Step81
   // absorbing boundary conditions are disabled we simply enforce
   // homogeneous Dirichlet conditions on the tangential component of the
   // electric field. In the context of time-harmonic Maxwell's equations
-  // these are also known as \emph{perfectly conducting boundary
-  // conditions}.
+  // these are also known as perfectly conducting boundary conditions.
 
   template <int dim>
   Maxwell<dim>::Maxwell()