pgsql: Doc: fix text's description of regexp_replace's arguments.

Doc: fix text's description of regexp_replace's arguments.

Section 9.7.3 had a syntax synopsis for regexp_replace()
that was different from Table 9.10's, but still wrong.
Update that one too.  Oversight in 580f8727c.

Jian He

Discussion: https://postgr.es/m/CACJufxG3NFKKsh6x4fRLv8h3V-HvN4W5dA=zNKMxsNcDwOKang@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/da4017a694de0610bd5b3a54adda311e46e26300

Modified Files
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doc/src/sgml/func.sgml | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)