Fix HTML encoding of captcha strings

hiboo/captcha/captcha.py

@@ -64,8 +64,7 @@ class ImageCaptchaField(fields.CaptchaField):
         output = base64.b64encode(png.getvalue()).decode("ascii")
         return widgets.HTMLString(
             '<p><img src="data:image/png;base64,{}"></p>'.format(output)
-            + super(ImageCaptchaField, self).__call__(**kwargs)
-        )
+        ) + super(ImageCaptchaField, self).__call__(**kwargs)
 
     def make_char(self, char, rotation_range=15):
         """ Renders a character