Update clippy_lints/src/pathbuf_init_then_push.rs

Co-authored-by: Fridtjof Stoldt <[email protected]>

Author: lengyijun

clippy_lints/src/pathbuf_init_then_push.rs

@@ -26,13 +26,15 @@ declare_clippy_lint! {
     ///
     /// ### Example
     /// ```rust
-    /// use std::path::PathBuf;
+    /// # use std::path::PathBuf;
     /// let mut path_buf = PathBuf::new();
     /// path_buf.push("foo");
     /// ```
     /// Use instead:
     /// ```rust
-    /// use std::path::PathBuf;
+    /// # use std::path::PathBuf;
+    /// let path_buf = PathBuf::from("foo");
+    /// // or
     /// let path_buf = PathBuf::new().join("foo");
     /// ```
     #[clippy::version = "1.78.0"]