def CheckVlogArguments(filename, clean_lines, linenum, error):
line = clean_lines.elided[linenum]<EOL>if Search(r'<STR_LIT>', line):<EOL><INDENT>error(filename, linenum, '<STR_LIT>', <NUM_LIT:5>,<EOL>'<STR_LIT>'<EOL>'<STR_LIT>')<EOL><DEDENT>
Checks that VLOG() is only used for defining a logging level.

    For example, VLOG(2) is correct. VLOG(INFO), VLOG(WARNING), VLOG(ERROR), and
    VLOG(FATAL) are not.

    Args:
      filename: The name of the current file.
      clean_lines: A CleansedLines instance containing the file.
      linenum: The number of the line to check.
      error: The function to call with any errors found.