Apply suggestions from code review

Author: Affie

src/DataBlobs/services/BlobEntry.jl

@@ -74,7 +74,7 @@ end
 
 function getBlobentry(var::VariableDFG, key::Symbol)
     if !hasBlobentry(var, key)
-        throw(DFGLabelError(key))
+        throw(DFGLabelNotFoundError(key))
     end
     return var.blobEntries[findfirst(x -> x.label == key, var.blobEntries)]
 end

src/errors.jl

@@ -57,4 +57,4 @@ end
 
 function Base.showerror(io::IO, ex::DFGSerializationError)
     return print(io, "DFGSerializationError: ", ex.msg)
-end
+end