Log Message:
-----------
Clearify how processes are started by autovacuum, and what the effect
of autovacuum_max_workers parameter is.
Per discussion with Alvaro.
Modified Files:
--------------
pgsql/doc/src/sgml:
maintenance.sgml (r1.86 -> r1.87)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/maintenance.sgml?r1=1.86&r2=1.87)