io::Seek::rewind: Set tracking issue

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs
index cebed3a7c182172f4d1e1406a142ae751d35d8ef..9f43379aff7878ab64a636f8f0411e8788120def 100644 (file)
--- a/library/std/src/io/mod.rs
+++ b/library/std/src/io/mod.rs
@@ -1698,7 +1698,7 @@ pub trait Seek {
     /// f.read_to_string(&mut buf).unwrap();
     /// assert_eq!(&buf, hello);
     /// ```
-    #[unstable(feature = "seek_rewind", issue = "none")]
+    #[unstable(feature = "seek_rewind", issue = "85149")]
     fn rewind(&mut self) -> Result<()> {
         self.seek(SeekFrom::Start(0))?;
         Ok(())