Update _core.py

remove whitespaces

Author: javadnoorb

pandas/plotting/_core.py

@@ -903,7 +903,7 @@ def __init__(self, data, x, y, C=None, **kwargs):
     def _make_plot(self):
         x, y, data, C = self.x, self.y, self.data, self.C
         ax = self.axes[0]
-        
+
         # pandas uses colormap, matplotlib uses cmap.
         cmap = self.colormap or 'BuGn'
         cmap = self.plt.cm.get_cmap(cmap)
@@ -2793,7 +2793,7 @@ def __call__(self, x=None, y=None, kind='line', ax=None,
                  rot=None, fontsize=None, colormap=None, table=False,
                  yerr=None, xerr=None,
                  secondary_y=False, sort_columns=False, **kwds):
-        
+
         return plot_frame(self._data, kind=kind, x=x, y=y, ax=ax,
                           subplots=subplots, sharex=sharex, sharey=sharey,
                           layout=layout, figsize=figsize, use_index=use_index,