Fix some dart:io documentation comments.

sdk/lib/io/process.dart

Index: sdk/lib/io/process.dart
diff --git a/sdk/lib/io/process.dart b/sdk/lib/io/process.dart
index deb3c83f41bbeddbbf1932eaf821adc1954418b0..e3c62e977fe925f71d84a88d342c8902da4b1163 100644
--- a/sdk/lib/io/process.dart
+++ b/sdk/lib/io/process.dart
@@ -79,7 +79,7 @@ abstract class Process {
                                             [ProcessOptions options]);
 
   /**
-   * Returns an input stream of the process stdout.
+   * Returns the standard output stream of the process as a [:Stream:].

[Søren Gjesse, 2013/02/25 09:15:05]

For consistency either remove ::'s here or add them to [IOSink].

[Bill Hesse, 2013/02/25 14:55:25]

But IOSink is a class in this library, and the link works.

    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.
@@ -87,7 +87,7 @@ abstract class Process {
   Stream<List<int>> get stdout;
 
   /**
-   * Returns an input stream of the process stderr.
+   * Returns the standard error stream of the process as a [:Stream:].
    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.
@@ -95,7 +95,7 @@ abstract class Process {
   Stream<List<int>> get stderr;
 
   /**
-   * Returns an output stream to the process stdin.
+   * Returns the standard input stream of the process as an [IOSink].
    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.
@@ -103,8 +103,8 @@ abstract class Process {
   IOSink<Process> get stdin;
 
   /**
-   * Sets an exit handler which gets invoked when the process
-   * terminates.
+   * Returns a [:Future:] which completes with the exit code of the process
+   * when the process completes.
    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.