Yes I removed the comment...
Tail end of postgresql.conf......
#---------------------------------------------------------------------------
# VERSION/PLATFORM COMPATIBILITY
#---------------------------------------------------------------------------
# - Previous Postgres Versions -
# do not allow the database engine to change the from clause
add_missing_from = false
#regex_flavor = advanced # advanced, extended, or basic
#sql_inheritance = true
#default_with_oids = true
# - Other Platforms & Clients -
#transform_null_equals = false
