Check if files, used as input when pre-processing MPL-containers in their numbered form, need fixing.

def check_input_files_for_numbered_seq(sourceDir, suffix, containers):
    """Check if files, used as input when pre-processing MPL-containers in their numbered form, need fixing."""
    # Check 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 ):
            if check_header_comment( currentFile ):
                return True
    return False