supply the same message for MT mock data

src/test/resources/mockserver/__files/body-i18n-api-v2-translation-products-JavaclientTest-versions-1.0.0-locales-en-US-components-JAVA-y61WQ.json

@@ -1 +1 @@
-{"response":{"code":200,"message":"OK","serverTime":"2019-10-23T16:07:14.124"},"signature":"","data":{"productName":"JavaclientTest","version":"1.0.0","dataOrigin":"MT","pseudo":false,"machineTranslation":true,"component":"JAVA","messages":{"LeadTest":"[{0}] Test alert","table.host":"Host","global_text_username":"User name","translation_not_ready":"not_ready","key.mt":"It's a testing source","sample.plural.key1":"{0, plural, one{There is one file on disk \"{1}\".} other{There are # files on disk \"{1}\".}}"},"locale":"en-US","status":"","id":0}}
+{"response":{"code":200,"message":"OK","serverTime":"2019-10-23T16:07:14.124"},"signature":"","data":{"productName":"JavaclientTest","version":"1.0.0","dataOrigin":"MT","pseudo":false,"machineTranslation":true,"component":"JAVA","messages":{"LeadTest":"[{0}] Test alert","table.host":"Host","global_text_username":"User name","translation_not_ready":"not_ready","key.mt":"It's a testing source","sample.plural.key1":"{0, plural, one{There is one file on disk \"{1}\".} other{There are # files on disk \"{1}\".}}", "NamedArgs": "{start} - {to} of {total} customers"},"locale":"en-US","status":"","id":0}}