Expand some of the std{in,out,err} usages.

Author: frewsxcv

src/libstd/process.rs

@@ -106,15 +106,18 @@ use sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};
 pub struct Child {
     handle: imp::Process,
 
-    /// The handle for writing to the child's stdin, if it has been captured
+    /// The handle for writing to the child's standard input (stdin), if it has
+    /// been captured.
     #[stable(feature = "process", since = "1.0.0")]
     pub stdin: Option<ChildStdin>,
 
-    /// The handle for reading from the child's stdout, if it has been captured
+    /// The handle for reading from the child's standard output (stdout), if it
+    /// has been captured.
     #[stable(feature = "process", since = "1.0.0")]
     pub stdout: Option<ChildStdout>,
 
-    /// The handle for reading from the child's stderr, if it has been captured
+    /// The handle for reading from the child's standard error (stderr), if it
+    /// has been captured.
     #[stable(feature = "process", since = "1.0.0")]
     pub stderr: Option<ChildStderr>,
 }
@@ -149,7 +152,7 @@ impl fmt::Debug for Child {
     }
 }
 
-/// A handle to a child process's stdin.
+/// A handle to a child process's standard input (stdin).
 ///
 /// This struct is used in the [`stdin`] field on [`Child`].
 ///
@@ -196,7 +199,7 @@ impl fmt::Debug for ChildStdin {
     }
 }
 
-/// A handle to a child process's stdout.
+/// A handle to a child process's standard output (stdout).
 ///
 /// This struct is used in the [`stdout`] field on [`Child`].
 ///
@@ -546,7 +549,8 @@ impl Command {
         self
     }
 
-    /// Configuration for the child process's stdin handle (file descriptor 0).
+    /// Configuration for the child process's standard input (stdin) handle
+    /// (file descriptor 0).
     ///
     /// # Examples
     ///
@@ -566,7 +570,8 @@ impl Command {
         self
     }
 
-    /// Configuration for the child process's stdout handle (file descriptor 1).
+    /// Configuration for the child process's standard output (stdout) handle
+    /// (file descriptor 1).
     ///
     /// # Examples
     ///
@@ -586,7 +591,8 @@ impl Command {
         self
     }
 
-    /// Configuration for the child process's stderr handle (file descriptor 2).
+    /// Configuration for the child process's standard error (stderr) handle
+    /// (file descriptor 2).
     ///
     /// # Examples
     ///