Stokes: correct deprecation message

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@10908 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/freeflow/stokes/stokesvolumevariables.hh

@@ -161,7 +161,7 @@ public:
      * \brief Returns the dynamic viscosity \f$ \mathrm{[Pa s]} \f$ of the fluid in
      *        the sub-control volume.
      */
-    DUNE_DEPRECATED_MSG("function StokesFluxVariables::viscosity() is deprecated, use StokesFluxVariables::dynamicViscosity() instead.")
+    DUNE_DEPRECATED_MSG("function StokesVolumeVariables::viscosity() is deprecated, use StokesFluxVariables::dynamicViscosity() instead.")
     Scalar viscosity() const
     { return dynamicViscosity(); }