Rollup merge of #82395 - pickfire:see-more, r=GuillaumeGomez

Add missing "see its documentation for more" stdio

StdoutLock and StderrLock does not have example, it would be better
to leave "see its documentation for more" like iter docs.

Author: Dylan-DPC

library/std/src/io/stdio.rs

@@ -497,7 +497,7 @@ pub struct Stdout {
 /// A locked reference to the [`Stdout`] handle.
 ///
 /// This handle implements the [`Write`] trait, and is constructed via
-/// the [`Stdout::lock`] method.
+/// the [`Stdout::lock`] method. See its documentation for more.
 ///
 /// ### Note: Windows Portability Consideration
 /// When operating in a console, the Windows implementation of this stream does not support
@@ -711,7 +711,7 @@ pub struct Stderr {
 /// A locked reference to the [`Stderr`] handle.
 ///
 /// This handle implements the [`Write`] trait and is constructed via
-/// the [`Stderr::lock`] method.
+/// the [`Stderr::lock`] method. See its documentation for more.
 ///
 /// ### Note: Windows Portability Consideration
 /// When operating in a console, the Windows implementation of this stream does not support