rustdoc: tidy excess whitespace

Author: megakorre

tests/rustdoc-ui/issue-105742.rs

@@ -6,30 +6,30 @@ pub fn next<'a, T>(s: &'a mut dyn SVec<Item = T, Output = T>) {
     //~| expected 1 generic argument
     //~| the trait `SVec` cannot be made into an object
     //~| `SVec` cannot be made into an object
-    //~| missing generics for associated type `SVec::Item` 
+    //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     let _ = s;
 }
 
 pub trait SVec: Index<
     <Self as SVec>::Item,
     //~^ expected 1 lifetime argument
-    //~| expected 1 generic argument 
+    //~| expected 1 generic argument
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     Output = <Index<<Self as SVec>::Item,
     //~^ expected 1 lifetime argument
     //~| expected 1 generic argument
-    //~| missing generics for associated type `SVec::Item` 
+    //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     Output = <Self as SVec>::Item> as SVec>::Item,
     //~^ expected 1 lifetime argument
     //~| expected 1 generic argument
-    //~| expected 1 lifetime argument 
+    //~| expected 1 lifetime argument
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`
     //~| missing generics for associated type `SVec::Item`