Errorbar function should only plot datapoints by default.

Dear matplotlib users/developers,

I recently noticed that the errorbar funciton in the pyplot module changed it's default setting to fmt="-".
This is a bit strange since this function is primarily used to display individual data points with measurement errors, drawing a line connecting the datapoints is not a common procedure and normally only done with a fit to the data.
I think it makes much more sense if the default behaviour was fmt="+".

Kind regards,

Pim Schellart