Fix io::Take::read_buf

Author: a1phyr

library/std/src/io/mod.rs

@@ -2942,7 +2942,7 @@ impl<T: Read> Read for Take<T> {
             }
 
             let mut cursor = sliced_buf.unfilled();
-            self.inner.read_buf(cursor.reborrow())?;
+            let result = self.inner.read_buf(cursor.reborrow());
 
             let new_init = cursor.init_ref().len();
             let filled = sliced_buf.len();
@@ -2957,13 +2957,14 @@ impl<T: Read> Read for Take<T> {
             }
 
             self.limit -= filled as u64;
+
+            result
         } else {
             let written = buf.written();
-            self.inner.read_buf(buf.reborrow())?;
+            let result = self.inner.read_buf(buf.reborrow());
             self.limit -= (buf.written() - written) as u64;
+            result
         }
-
-        Ok(())
     }
 }