Fix another &mut * issue.

Author: sunfishcode

src/backend/linux_raw/param/auxv.rs

@@ -573,7 +573,7 @@ impl Iterator for AuxFile {
         let mut buf = [0_u8; size_of::<Self::Item>()];
         let mut slice = &mut buf[..];
         while !slice.is_empty() {
-            match crate::io::read(&self.0, slice) {
+            match crate::io::read(&self.0, &mut *slice) {
                 Ok(0) => panic!("unexpected end of auxv file"),
                 Ok(n) => slice = &mut slice[n..],
                 Err(crate::io::Errno::INTR) => continue,

src/buffer.rs

@@ -9,8 +9,8 @@ use core::slice;
 
 /// A memory buffer that may be uninitialized.
 ///
-/// If you see errors like "move occurs because `x.y` has type `&mut [u8]`,
-/// which does not implement the `Copy` trait", replace `x.y` with `&mut *x.y`.
+/// If you see errors like "move occurs because `x` has type `&mut [u8]`,
+/// which does not implement the `Copy` trait", replace `x` with `&mut *x`.
 pub trait Buffer<T>: private::Sealed<T> {}
 
 // Implement `Buffer` for all the types that implement `Sealed`.