Address comments

Author: blegat

src/Utilities/results.jl

@@ -95,7 +95,7 @@ function dual_objective_value(model::MOI.ModelLike,
                          S::Type{<:MOI.AbstractSet},
                          T::Type,
                          result_index::Integer)
-    value = zero(T) # sum won't work if there are now constraints.
+    value = zero(T) # sum won't work if there are no constraints.
     for ci in MOI.get(model, MOI.ListOfConstraintIndices{F, S}())
         value += dual_objective_value(model, ci, T, result_index)
     end
@@ -121,7 +121,8 @@ end
     get_fallback(model::MOI.ModelLike, ::MOI.DualObjectiveValue, T::Type)::T
 
 Compute the dual objective value of type `T` using the `ConstraintDual` results
-and the `ConstraintFunction` and `ConstraintSet` values.
+and the `ConstraintFunction` and `ConstraintSet` values. Note that the nonlinear
+part of the model is ignored.
 """
 function get_fallback(model::MOI.ModelLike, attr::MOI.DualObjectiveValue, T::Type)
     value = zero(T) # sum will not work if there are zero constraints

src/attributes.jl

@@ -474,7 +474,7 @@ end
     DualObjectiveValue(result_index::Int=1)
 
 A model attribute for the value of the objective function of the dual problem
-for the `resultindex`th dual result.
+for the `result_index`th dual result.
 """
 struct DualObjectiveValue <: AbstractModelAttribute
     result_index::Int