use working pattern

Author: dszakallas

tools/emr/submit_datagen_job.py

@@ -96,9 +96,9 @@ def submit_datagen_job(name,
     build_dir = '/ldbc_snb_datagen/build'
 
     if not copy_filter:
-        copy_filter = f'hdfs://{build_dir}/{format}/{mode}/.*'
+        copy_filter = f'.*{build_dir}/{format}/{mode}/.*'
     else:
-        copy_filter = f'hdfs://{build_dir}/{copy_filter}'
+        copy_filter = f'.*{build_dir}/{copy_filter}'
 
     exec_info = get_instance_info(instance_type)