code review 881047: typo in the first code example in the "Handling panics"...

doc/go_spec.html

 <!-- title The Go Programming Language Specification -->
 <!-- subtitle Version of March 25, 2010 -->
 
 <!--
 Todo
 [ ] clarify: two equal lowercase identifiers from different packages denote different objects
 [ ] need language about function/method calls and parameter passing rules
 [ ] last paragraph of #Assignments (constant promotion) should be elsewhere
     and mention assignment to empty interface.
 [ ] need to say something about "scope" of selectors?
@@ skipping 1719 matching lines @@
 type Cipher interface {
         BlockSize() int
         Encrypt(src, dst []byte)
         Decrypt(src, dst []byte)
 }
 </pre>
 
 <p>
 The declared type does not inherit any <a href="#Method_declarations">methods</a>
 bound to the existing type, but the <a href="#Types">method set</a>
-of elements of a composite type is not changed:
+of an interface type or of elements of a composite type remains unchanged:
 </p>
 
 <pre>
 // A Mutex is a data type with two methods Lock and Unlock.
 type Mutex struct         { /* Mutex fields */ }
 func (m *Mutex) Lock()    { /* Lock implementation */ }
 func (m *Mutex) Unlock()  { /* Unlock implementation */ }
 
 // NewMutex has the same composition as Mutex but its method set is empty.
 type NewMutex Mutex
 
 // PrintableMutex's method set contains the methods
 // Lock and Unlock bound to its anonymous field Mutex.
 type PrintableMutex struct {
         Mutex
 }
+
+// MyCipher is an interface type that has the same method set as Cipher.
+type MyCipher Cipher
 </pre>
 
 <p>
 A type declaration may be used to define a different boolean, numeric, or string
 type and attach methods to it:
 </p>
 
 <pre>
 type TimeZone int
 
@@ skipping 3340 matching lines @@
 <h2 id="Implementation_differences"><span class="alert">Implementation differences - TODO</span></h2>
 <ul>
         <li><span class="alert">Implementation does not honor the restriction on goto statements and targets (no intervening declarations).</span></li>
         <li><span class="alert">Method expressions are partially implemented.</span></li>
         <li><span class="alert">Gccgo allows only one init() function per source file.</span></li>
         <li><span class="alert">Deferred functions cannot access the surrounding function's result parameters.</span></li>
         <li><span class="alert">Function results are not addressable in gccgo.</span></li>
         <li><span class="alert">Recover is not implemented.</span></li>
         <li><span class="alert">The implemented version of panic differs from its specification.</span></li>
 </ul>