Syntax:  SET LANGUAGE FIXED COMMENTS text_string column add_remove
              defined_language

  Specifies the character sequences of fixed comment delimiters in the
  language.

  This command is used for languages requiring that a specific comment
  delimiter be placed in a specific column, such as SET LANGUAGE FIXED
  COMMENTS "*" 1 ADD COBOL, since COBOL requires comment delimiters to
  be in column 1.