API: Use humbug.init_from_options in send-message example.

(imported from commit d44cd5fafa565b2f4709714c2777ad9ce513d953)

examples/send-message

@@ -46,11 +46,7 @@ if len(args) == 0:
     parser.error("You must specify recipients")
 
 sys.path.append(path.join(path.dirname(__file__), '..'))
-client = humbug.Client(
-    email=options.user,
-    api_key=options.api_key,
-    verbose=True,
-    site=options.site)
+client = humbug.init_from_options(options)
 
 message_data = {
     "type": options.type,