regexp_replace 'g' flag

Why doesn't the 'g' flag appear in this table?

    http://www.postgresql.org/docs/9.2/static/functions-matching.html#POSIX-EMBEDDED-OPTIONS-TABLE

I see text here that says:

    http://www.postgresql.org/docs/9.2/static/functions-matching.html#FUNCTIONS-POSIX-REGEXP
    Other supported flags are described in Table 9-19.

Seems 'g' should appear there too.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +