Simplify the DNS usage example.

website/api.txt

@@ -1010,36 +1010,32 @@ necessary in case of errors (parse error or so).
 
 === DNS
 
-Here is an example of which reads domains from the command line, resolves
-them, then reverse resolves the IP addresses returned.
+Here is an example of which resolves +"www.google.com"+ then reverse
+resolves the IP addresses which are returned. 
 
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-for (var i = 2; i < ARGV.length; i++) {
-  var name = ARGV[i]
-  puts("looking up " + name);
-  var resolution = node.dns.resolve4(name);
-
-  resolution.addCallback(function (addresses, ttl, cname) {
-    puts("addresses: " + JSON.stringify(addresses));
-    puts("ttl: " + JSON.stringify(ttl));
-    puts("cname: " + JSON.stringify(cname));
-
-    for (var i = 0; i < addresses.length; i++) {
-      var a = addresses[i];
-      var reversing = node.dns.reverse(a);
-      reversing.addCallback( function (domains, ttl, cname) {
-        puts("reverse for " + a + ": " + JSON.stringify(domains));
-      });
-      reversing.addErrback( function (code, msg) {
-        puts("reverse for " + a + " failed: " + msg);
-      });
-    }
-  });
+var resolution = node.dns.resolve4("www.google.com");
+
+resolution.addCallback(function (addresses, ttl, cname) {
+  puts("addresses: " + JSON.stringify(addresses));
+  puts("ttl: " + JSON.stringify(ttl));
+  puts("cname: " + JSON.stringify(cname));
+
+  for (var i = 0; i < addresses.length; i++) {
+    var a = addresses[i];
+    var reversing = node.dns.reverse(a);
+    reversing.addCallback( function (domains, ttl, cname) {
+      puts("reverse for " + a + ": " + JSON.stringify(domains));
+    });
+    reversing.addErrback( function (code, msg) {
+      puts("reverse for " + a + " failed: " + msg);
+    });
+  }
+});
 
-  resolution.addErrback(function (code, msg) {
-    puts("error: " + msg);
-  });
-}
+resolution.addErrback(function (code, msg) {
+  puts("error: " + msg);
+});
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