Fix typo in fixture data for subject tests.

Author: Robert Jackson

__testfixtures__/ember-qunit-codemod/subject.input.js

@@ -75,5 +75,5 @@ moduleFor('service:foo', 'Unit | Service | Foo', {
 });
 
 test('can use service', function (assert) {
-  this.servicer.something();
+  this.service.something();
 });

__testfixtures__/ember-qunit-codemod/subject.output.js

@@ -79,6 +79,6 @@ module('Unit | Service | Foo', function(hooks) {
   });
 
   test('can use service', function (assert) {
-    this.servicer.something();
+    this.service.something();
   });
 });