pgsql: doc: mention pg_reload_conf() for reloading the config file

doc: mention pg_reload_conf() for reloading the config file

Reported-by: Ian Barwick

Discussion: /messages/by-id/538950ec-b86a-1650-6078-beb7091c09c2@2ndquadrant.com

Backpatch-through: 9.4

Branch
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REL9_4_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/5dbe666ff89cf48ce4fc70c731a1b2ee7336faaf

Modified Files
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doc/src/sgml/client-auth.sgml | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)