Review fixes + doc-features

library/std/src/fs.rs

@@ -1007,17 +1007,18 @@ impl Metadata {
         self.file_type().is_file()
     }
 
-    /// Returns `true` if this metadata is for a symbolic link file.
+    /// Returns `true` if this metadata is for a symbolic link.
     ///
     /// # Examples
     ///
     /// ```no_run
+    /// #![feature(is_symlink)]
     /// use std::fs;
     /// use std::path::Path;
     /// use std::os::unix::fs::symlink;
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let link_path = Path::new("/link");
+    ///     let link_path = Path::new("link");
     ///     symlink("/origin_does_not_exists/", link_path)?;
     ///
     ///     let metadata = fs::symlink_metadata(link_path)?;