fix spacing

Author: lohanidamodar

templates/dart/lib/services/service.dart.twig

@@ -8,19 +8,19 @@ part of {{ language.params.packageName }};
 {% endmacro %}
 
 {%if service.description %}
-{{ service.description|dartComment}}
+{{- service.description|dartComment}}
 {% endif %}
 class {{ service.name | caseUcfirst }} extends Service {
     {{ service.name | caseUcfirst }}(super.client);
 
 {% for method in service.methods %}
      /// {{ method.title }}
-{% if method.description %}
+{%~ if method.description %}
      ///
 {{ method.description | dartComment }}
      ///
 {% endif %}
-    {% if method.type == 'location' %} Future<Uint8List> {% else %} {% if method.responseModel and method.responseModel != 'any' %}Future<models.{{method.responseModel | caseUcfirst | overrideIdentifier}}>{% else %}Future{% endif %}{% endif %} {{ method.name | caseCamel }}({{ _self.method_parameters(method.parameters.all, method.consumes) }}) async {
+    {% if method.type == 'location' %}Future<Uint8List>{% else %}{% if method.responseModel and method.responseModel != 'any' %}Future<models.{{method.responseModel | caseUcfirst | overrideIdentifier}}>{% else %}Future{% endif %}{% endif %} {{ method.name | caseCamel }}({{ _self.method_parameters(method.parameters.all, method.consumes) }}) async {
         final String path = '{{ method.path }}'{% for parameter in method.parameters.path %}.replaceAll('{{ '{' }}{{ parameter.name | caseCamel }}{{ '}' }}', {{ parameter.name | caseCamel | overrideIdentifier }}){% endfor %};
 
 {% if 'multipart/form-data' in method.consumes %}