retry with settings in the right place

Author: bcully

modules/repository-s3/src/internalClusterTest/java/org/elasticsearch/repositories/s3/S3RepositoryThirdPartyTests.java

@@ -102,15 +102,15 @@ protected Settings nodeSettings() {
                 TimeValue.timeValueMillis(randomLongBetween(defaultMillis, defaultMillis * 2))
             );
         }
-        settings.put(S3Repository.BUFFER_SIZE_SETTING.getKey(), S3Repository.MIN_PART_SIZE_USING_MULTIPART);
         return settings.build();
     }
 
     @Override
     protected void createRepository(String repoName) {
         Settings.Builder settings = Settings.builder()
             .put("bucket", System.getProperty("test.s3.bucket"))
-            .put("base_path", System.getProperty("test.s3.base", "testpath"));
+            .put("base_path", System.getProperty("test.s3.base", "testpath"))
+            .put("buffer_size", S3Repository.MIN_PART_SIZE_USING_MULTIPART);
         final String endpoint = USE_FIXTURE ? minio.getAddress() : System.getProperty("test.s3.endpoint");
         if (endpoint != null) {
             settings.put("endpoint", endpoint);