Fix the changelog message

Author: blyxyas

CHANGELOG.md

@@ -5318,7 +5318,7 @@ Released 2018-09-13
 [`zero_width_space`]: https://rust-lang.github.io/rust-clippy/master/index.html#zero_width_space
 [`zst_offset`]: https://rust-lang.github.io/rust-clippy/master/index.html#zst_offset
 <!-- end autogenerated links to lint list -->
-<!-- Start configuration's links to the book, DO NOT EDIT MANUALLY -->
+<!-- begin autogenerated links to configuration documentation -->
 [`arithmetic-side-effects-allowed`]: https://doc.rust-lang.org/clippy/lint_configuration.html#arithmetic-side-effects-allowed
 [`arithmetic-side-effects-allowed-binary`]: https://doc.rust-lang.org/clippy/lint_configuration.html#arithmetic-side-effects-allowed-binary
 [`arithmetic-side-effects-allowed-unary`]: https://doc.rust-lang.org/clippy/lint_configuration.html#arithmetic-side-effects-allowed-unary
@@ -5373,3 +5373,5 @@ Released 2018-09-13
 [`future-size-threshold`]: https://doc.rust-lang.org/clippy/lint_configuration.html#future-size-threshold
 [`unnecessary-box-size`]: https://doc.rust-lang.org/clippy/lint_configuration.html#unnecessary-box-size
 [`allow-private-module-inception`]: https://doc.rust-lang.org/clippy/lint_configuration.html#allow-private-module-inception
+<!-- end autogenerated links to configuration documentation -->
+

clippy_lints/src/utils/internal_lints/metadata_collector.rs

@@ -267,15 +267,14 @@ Please use that command to update the file and do not edit it by hand.
         let mut changelog = std::fs::read_to_string(CHANGELOG_PATH).unwrap();
         let mut changelog_file = OpenOptions::new().read(true).write(true).open(CHANGELOG_PATH).unwrap();
 
-        if let Some(position) = changelog.find("<!-- Start configuration's links to the book, DO NOT EDIT MANUALLY -->")
-        {
+        if let Some(position) = changelog.find("<!-- begin autogenerated links to configuration documentation -->") {
             // I know this is kinda wasteful, we just don't have regex on `clippy_lints` so... this is the best
             // we can do AFAIK.
             changelog = changelog[..position].to_string();
         }
         writeln!(
             changelog_file,
-            "{changelog}<!-- Start configuration's links to the book, DO NOT EDIT MANUALLY -->\n{}",
+            "{changelog}<!-- begin autogenerated links to configuration documentation -->\n{}\n<!-- end autogenerated links to configuration documentation -->\n",
             self.configs_to_markdown(ClippyConfiguration::to_markdown_link)
         )
         .unwrap();