code review 3302042: Removed bytes.Add and bytes.AddByte; we now have 'append'.

doc/effective_go.html

 <!-- Effective Go -->
 
 <h2 id="introduction">Introduction</h2>
 
 <p>
 Go is a new language.  Although it borrows ideas from
 existing languages,
 it has unusual properties that make effective Go programs
 different in character from programs written in its relatives.
 A straightforward translation of a C++ or Java program into Go
@@ skipping 776 matching lines @@
     f, err := os.Open(filename, os.O_RDONLY, 0)
     if err != nil {
         return "", err
     }
     defer f.Close()  // f.Close will run when we're finished.
 
     var result []byte
     buf := make([]byte, 100)
     for {
         n, err := f.Read(buf[0:])
-        result = bytes.Add(result, buf[0:n])
+        result = append(result, buf[0:n]...)
         if err != nil {
             if err == os.EOF {
                 break
             }
             return "", err  // f will be closed if we return here.
         }
     }
     return string(result), nil // f will be closed if we return here.
 }
 </pre>
@@ skipping 2132 matching lines @@
 <pre>
 verifying implementation
 type Color uint32
 ····
 // Check that Color implements image.Color and image.Image
 var _ image.Color = Black
 var _ image.Image = Black
 </pre>
 -->