pgsql: Code review for --quote-all-identifiers patch: add missing --help

Log Message:
-----------
Code review for --quote-all-identifiers patch: add missing --help documentation
for new pg_dump/pg_dumpall parameters, make a couple of trivial stylistic
adjustments to make the code follow usual project style.

Modified Files:
--------------
pgsql/src/backend/utils/adt:
ruleutils.c (r1.329 -> r1.330)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ruleutils.c?r1=1.329&r2=1.330)
pgsql/src/bin/pg_dump:
dumputils.c (r1.57 -> r1.58)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/dumputils.c?r1=1.57&r2=1.58)
dumputils.h (r1.30 -> r1.31)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/dumputils.h?r1=1.30&r2=1.31)
pg_dump.c (r1.583 -> r1.584)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dump.c?r1=1.583&r2=1.584)
pg_dumpall.c (r1.136 -> r1.137)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_dumpall.c?r1=1.136&r2=1.137)