remove trailing whitespace

Author: pietroalbini

posts/2020-07-16-Rust-1.45.0.md

@@ -78,9 +78,9 @@ fn cast(x: f32) -> u8 {
 
 fn main() {
     let f = 300.0;
-    
+
     let x = cast(f);
-    
+
     println!("x: {}", x);
 }
 ```
@@ -117,7 +117,7 @@ fn main() {
     let too_big = 300.0;
     let too_small = -100.0;
     let nan = f32::NAN;
-    
+
     println!("too_big_casted = {}", cast(too_big));
     println!("too_small_casted = {}", cast(too_small));
     println!("not_a_number_casted = {}", cast(nan));