fix fmt CI problem

Author: lisanhu

plotters/src/evcxr.rs

@@ -1,10 +1,10 @@
 use crate::coord::Shift;
 use crate::drawing::{DrawingArea, IntoDrawingArea};
 use base64;
-use image::{png::PngEncoder, ImageBuffer, ImageError, Pixel, RgbImage, Rgb};
-use std::ops::Deref;
-use plotters_svg::SVGBackend;
+use image::{png::PngEncoder, ImageBuffer, ImageError, Pixel, Rgb, RgbImage};
 use plotters_bitmap::BitMapBackend;
+use plotters_svg::SVGBackend;
+use std::ops::Deref;
 
 /// The wrapper for the generated SVG
 pub struct SVGWrapper(String, String);
@@ -113,4 +113,4 @@ pub fn evcxr_bitmap_figure<
 //     interval: usize,
 // ) -> SVGWrapper {
 //     todo!();
-// }
+// }