Merge pull request #197 from JuliaRobotics/hotfix/4Q19/spelling

Update DFGVariable.jl

Author: GearsAD

src/entities/DFGVariable.jl

@@ -4,6 +4,8 @@ struct SingletonInferenceVariable <: InferenceVariable end
 
 """
 $(TYPEDEF)
+
+Main data container for Level2 data -- see developer wiki.
 """
 mutable struct VariableNodeData{T<:InferenceVariable}
   val::Array{Float64,2}
@@ -29,7 +31,7 @@ VariableNodeData(val::Array{Float64,2},bw::Array{Float64,2},BayesNetOutVertIDs::
 
 function VariableNodeData()
     st = stacktrace()
-    @warn "VariableNodeData() is depreciated please use VariableNodeData{T}() or VariableNodeData(softtype::T) where T <: InferenceVariable. Enable DEBUG logging for stack trace."
+    @warn "VariableNodeData() is deprecated please use VariableNodeData{T}() or VariableNodeData(softtype::T) where T <: InferenceVariable. Enable DEBUG logging for stack trace."
     @debug st
     VariableNodeData{InferenceVariable}(zeros(1,1), zeros(1,1), Symbol[], Int[], 0, false, :NOTHING, Symbol[], SingletonInferenceVariable(), false, 0.0, false, false)
 end