Enable dir_entry_ext2 feature in doc test.

m-ou-se · JohnTitor · web-flow · commit 469f4674fbed · 2021-07-05T16:26:54.000+02:00
Co-authored-by: Yuki Okushi &lt;jtitor@2k36.org&gt;
diff --git a/library/std/src/os/unix/fs.rs b/library/std/src/os/unix/fs.rs
@@ -849,6 +849,7 @@ pub trait DirEntryExt2: Sealed {
     /// # Examples
     ///
     /// ```
+    /// #![feature(dir_entry_ext2)]
     /// use std::os::unix::fs::DirEntryExt2;
     /// use std::{fs, io};
     ///
