MAGETWO-86436: Newsletter Label is broking on chinese Language like 订阅 #13029

 - Merge Pull Request #13029 from dasharath-wagento/magento2:feature-newsletter-subscribe-button-title-wrapped
 - Merged commits:
   1. f83956b
   2. 294c09e

Author: Oleksii Korshenko

app/design/frontend/Magento/luma/Magento_Newsletter/web/css/source/_module.less

@@ -67,7 +67,7 @@
             border-bottom-left-radius: 0;
             border-top-left-radius: 0;
             margin-left: -1px;
-            white-space : nowrap;
+            white-space: nowrap;
         }
     }
 }