clippy: bless tests

tests/ui/from_over_into.stderr

@@ -54,7 +54,7 @@ help: replace the `Into` implementation with `From<ExplicitPaths>`
 LL ~ impl core::convert::From<crate::ExplicitPaths> for bool {
 LL ~     fn from(mut val: crate::ExplicitPaths) -> Self {
 LL ~         let in_closure = || val.0;
-LL | 
+LL |
 LL ~         val.0 = false;
 LL ~         val.0
    |

tests/ui/let_and_return.stderr

@@ -71,7 +71,7 @@ LL |               result
 help: return the expression directly
    |
 LL ~             
-LL | 
+LL |
 LL ~             (match self {
 LL +                 E::A(x) => x,
 LL +                 E::B(x) => x,

tests/ui/manual_strip.stderr

@@ -17,7 +17,7 @@ LL ~     if let Some(<stripped>) = s.strip_prefix("ab") {
 LL ~         str::to_string(<stripped>);
 LL |
 LL ~         <stripped>.to_string();
-LL | 
+LL |
 LL ~         str::to_string(<stripped>);
 LL ~         <stripped>.to_string();
    |
@@ -39,7 +39,7 @@ LL ~     if let Some(<stripped>) = s.strip_suffix("bc") {
 LL ~         str::to_string(<stripped>);
 LL |
 LL ~         <stripped>.to_string();
-LL | 
+LL |
 LL ~         str::to_string(<stripped>);
 LL ~         <stripped>.to_string();
    |

tests/ui/result_map_unit_fn_unfixable.stderr

@@ -27,7 +27,7 @@ LL | ||         do_nothing(value)
 LL | ||     });
    | ||______^- help: try: `if let Ok(value) = x.field { ... }`
    |  |______|
-   | 
+   |
 
 error: called `map(f)` on an `Result` value where `f` is a closure that returns the unit type `()`
   --> tests/ui/result_map_unit_fn_unfixable.rs:37:5

tests/ui/suspicious_doc_comments.stderr

@@ -85,7 +85,7 @@ LL | |     ///! b
 help: use an inner doc comment to document the parent module or crate
    |
 LL ~     //! a
-LL | 
+LL |
 LL ~     //! b
    |