fix test

tests/ui/unnecessary_reserve.stderr

@@ -1,4 +1,4 @@
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:20:5
    |
 LL |     vec.reserve(1);
@@ -8,39 +8,39 @@ LL |     vec.extend([1]);
    |
    = note: `-D clippy::unnecessary-reserve` implied by `-D warnings`
 
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:24:5
    |
 LL |     vec.reserve(array.len());
    |     ------------------------ help: remove this line
 LL |     vec.extend(array);
    |     ^^^^^^^^^^^^^^^^^^
 
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:29:9
    |
 LL |         vec.reserve(1);
    |         -------------- help: remove this line
 LL |         vec.extend([1])
    |         ^^^^^^^^^^^^^^^
 
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:49:5
    |
 LL |     vec_deque.reserve(1);
    |     -------------------- help: remove this line
 LL |     vec_deque.extend([1]);
    |     ^^^^^^^^^^^^^^^^^^^^^^
 
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:53:5
    |
 LL |     vec_deque.reserve(array.len());
    |     ------------------------------ help: remove this line
 LL |     vec_deque.extend(array);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: this `reserve` no longer makes sense in rustc version >= 1.62
+error: unnecessary call to `reserve`
   --> $DIR/unnecessary_reserve.rs:58:9
    |
 LL |         vec_deque.reserve(1);