Fixed extra space in Flutter code examples

Author: eldadfux

templates/flutter/docs/example.md.twig

@@ -24,7 +24,7 @@ void main() { // Init SDK
 {% if parameter.required %}
     {{ parameter.name | caseCamel }}: {{ parameter | paramExample }},
 {% endif %}
-{% endfor %}  );
+{% endfor %});
 
 {% if method.type == 'location' %}
   print(result); // Resource URL string