Display the phone number in the confirm dialog during registration

Closes #2746

src/org/thoughtcrime/securesms/RegistrationActivity.java

@@ -197,8 +197,8 @@ public class RegistrationActivity extends BaseActionBarActivity {
       }
 
       AlertDialog.Builder dialog = new AlertDialog.Builder(self);
-      dialog.setMessage(String.format(getString(R.string.RegistrationActivity_we_will_now_verify_that_the_following_number_is_associated_with_your_device_s),
-                                      PhoneNumberFormatter.getInternationalFormatFromE164(e164number)));
+      dialog.setTitle(PhoneNumberFormatter.getInternationalFormatFromE164(e164number));
+      dialog.setMessage(R.string.RegistrationActivity_we_will_now_verify_that_the_following_number_is_associated_with_your_device_s);
       dialog.setPositiveButton(getString(R.string.RegistrationActivity_continue),
                                new DialogInterface.OnClickListener() {
                                  @Override