anchor.diff:          _:_ ->
             InvalidEntryPoint =
               "The entry point ~w:~w/~w is not valid. Make sure you have"
  -            " specified the correct module ('-m') and test function ('-t')",
  +            " specified the correct module ('-m') and test function ('-t').",
             opt_error(InvalidEntryPoint, [M,F,length(B)])
         end;
       _ ->
  
positive.code: -spec file_error(atom(), term()) -> no_return().
  
  file_error(Key, Value) ->
    opt_error("could not open '--~w' file ~s for writing", [Key, Value]).
  
  compile_and_load(Files, Options) ->
    Modules = proplists:get_value(modules, Options),
  
negative.code:           finalize(Rest, [Option|Acc]);
          _Else ->
            opt_error(
              "'--~s' value must be -1 (infinity) or >= ~w.",
              [Key, ?MINIMUM_TIMEOUT])
        end;
      test ->
  