code: def fix_input_files_for_numbered_seq(sourceDir, suffix, timestamp, containers):
      
      # Fix input files for each MPL-container type.
      for container in containers:
          files = glob.glob( os.path.join( sourceDir, container, container + '*' + suffix ) )
          for currentFile in sorted( files ):
              fix_header_comment( currentFile, timestamp )
docs: Fixes files used as input when pre-processing MPL-containers in their numbered form.