8733: Fix newline literals in docs

Author: torfsen

clippy_lints/src/methods/mod.rs

@@ -3796,8 +3796,9 @@ declare_clippy_lint! {
     ///
     /// ### Known Problems
     ///
-    /// This lint cannot detect if the split is intentionally restricted to a single type of newline (`\n` or `\r\n`),
-    /// for example during the parsing of a specific file format in which precisely one newline type is valid.
+    /// This lint cannot detect if the split is intentionally restricted to a single type of newline (`"\n"` or
+    /// `"\r\n"`), for example during the parsing of a specific file format in which precisely one newline type is
+    /// valid.
     /// ```
     #[clippy::version = "1.76.0"]
     pub STR_SPLIT_AT_NEWLINE,