Appease clippy

Author: madsmtm

Diff for: examples/drm.rs

@@ -158,7 +158,7 @@ mod imple {
         }
 
         let color = scale.eval_continuous(i);
-        let pixel = (color.r as u32) << 16 | (color.g as u32) << 8 | (color.b as u32);
+        let pixel = ((color.r as u32) << 16) | ((color.g as u32) << 8) | (color.b as u32);
         buf.fill(pixel);
     }