Tweak comment

examples/defer/defer.go

@@ -41,7 +41,8 @@ func writeFile(f *os.File) {
 func closeFile(f *os.File) {
 	fmt.Println("closing")
 	err := f.Close()
-	// It is important to check for errors when closing a file, even in a deferred function.
+	// It's important to check for errors when closing a
+	// file, even in a deferred function.
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "error: %v\n", err)
 		os.Exit(1)

examples/defer/defer.hash

@@ -1,2 +1,2 @@
-4e2229c593e102d4efd101a7e9aa21f3345e90d1
-S2RuPTkABip
+fadbe9c05bb42db672316ba19adf3c2189c7b3f5
+OrCaBiCrTKq

public/defer

@@ -30,7 +30,7 @@ purposes of cleanup. <code>defer</code> is often used where e.g.
             
           </td>
           <td class="code leading">
-            <a href="http://play.golang.org/p/S2RuPTkABip">
+            <a href="http://play.golang.org/p/OrCaBiCrTKq">
               <img title="Run code" class="run" src="data:image/png;base64,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" />
             </a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
@@ -134,7 +134,8 @@ of the enclosing function (<code>main</code>), after
         
         <tr>
           <td class="docs">
-            <p>It is important to check for errors when closing a file, even in a deferred function.</p>
+            <p>It&rsquo;s important to check for errors when closing a
+file, even in a deferred function.</p>
 
           </td>
           <td class="code leading">