pgsql: Improve pg_ctl's man page.

Improve pg_ctl's man page.

Explicitly document that the -o options of pg_ctl init mode are meant
for initdb, not postgres (Euler Taveira de Oliveira). Assorted other
copy-editing (Tom).

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=0de92fd13cc436c76fbbd4759c94e2d3623a6bf1

Modified Files
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doc/src/sgml/ref/pg_ctl-ref.sgml | 132 ++++++++++++++++++++++----------------
1 files changed, 76 insertions(+), 56 deletions(-)