message: syntax things
diff: @@ -109,7 +109,7 @@ public:
  FiniteElementSpace and will call its Update() method when
  needed. */
  ZienkiewiczZhuEstimator(BilinearFormIntegrator &integ, GridFunction &sol,
  - FiniteElementSpace *flux_fes, bool with_coeff = 0)
  + FiniteElementSpace *flux_fes, bool with_coeff = false)
  : current_sequence(-1),
  total_error(),
  anisotropic(false),
  @@ -129,7 +129,7 @@ public:
  this FiniteElementSpace; will call its Update() method
  when needed. */
  ZienkiewiczZhuEstimator(BilinearFormIntegrator &integ, GridFunction &sol,
  - FiniteElementSpace &flux_fes, bool with_coeff = 0)
  + FiniteElementSpace &flux_fes, bool with_coeff = false)
  : current_sequence(-1),
  total_error(),
  anisotropic(false),
  