Default context on LOG.Info(context.context, ...)

[germanvazquez-rfk]

Should methods passing nil context like this LOG.Info(nil, "nil context log") use "gournal.DefaultContext" instead of "defaultCtx"

In this line https://github.com/codedellemc/gournal/blob/master/gournal.go#L345 I would change the code to: ctx = Defaultcontext