Improve: error message

tests/ui/from_iter_instead_of_collect.rs

@@ -5,7 +5,7 @@ use std::iter::FromIterator;
 
 fn main() {
     let iter_expr = std::iter::repeat(5).take(5);
-
     Vec::from_iter(iter_expr);
+
     HashMap::<usize, &i8>::from_iter(vec![5, 5, 5, 5].iter().enumerate());
 }

tests/ui/from_iter_instead_of_collect.stderr

@@ -1,5 +1,5 @@
 error: use `.collect()` instead of `::from_iter()`
-  --> $DIR/from_iter_instead_of_collect.rs:9:5
+  --> $DIR/from_iter_instead_of_collect.rs:8:5
    |
 LL |     Vec::from_iter(iter_expr);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: ``iter_expr.collect()``