fix the doc for datalake store (#5189)

Author: qiaozha

lib/services/datalake.Store/README.md

@@ -32,7 +32,7 @@ npm install azure-arm-datalake-store
   var accountName = 'testadlsacct';
   var pathToEnumerate = '/myfolder';
   var acccountClient = new adlsManagement.DataLakeStoreAccountClient(credentials, 'your-subscription-id');
-  var filesystemClient = new adlsManagement.DataLakeStoreFileSystemClient(credentials, 'azuredatalakestore.net');
+  var filesystemClient = new adlsManagement.DataLakeStoreFileSystemClient(credentials);
   filesystemClient.fileSystem.listFileStatus(accountName, pathToEnumerate, function(err, result, request, response) {
     if (err) console.log(err);
     console.log(result);

lib/services/datalake.Store/package.json

@@ -4,7 +4,7 @@
   "contributors": [
     "Goldsmith, Benjamin <begoldsm@microsoft.com>"
   ],
-  "version": "3.1.1-preview",
+  "version": "3.1.2-preview",
   "description": "Microsoft Azure Data Lake Store Management Client Library for node",
   "tags": [
     "azure",