Tiles do not cover full area

[laufhannes]

For me (R2019b), curAxis is not updated after adjusting aspect ratio which results in empty areas:

I needed to add curAxis = axis(ax); in plot_openstreetmap.m#L65

    %% Adjust aspect ratio.
    adjust_axis(ax, curAxis);
    ax.PlotBoxAspectRatioMode = 'manual';
+   curAxis = axis(ax);