pgsql: Fix indentation of verbatim block elements Block elements with

Log Message:
-----------
Fix indentation of verbatim block elements

Block elements with verbatim formatting (literallayout, programlisting,
screen, synopsis) should be aligned at column 0 independent of the surrounding
SGML, because whitespace is significant, and indenting them creates erratic
whitespace in the output.  The CSS stylesheets already take care of indenting
the output.

Assorted markup improvements to go along with it.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        auto-explain.sgml (r1.8 -> r1.9)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/auto-explain.sgml?r1=1.8&r2=1.9)
        citext.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/citext.sgml?r1=1.4&r2=1.5)
        client-auth.sgml (r1.139 -> r1.140)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/client-auth.sgml?r1=1.139&r2=1.140)
        config.sgml (r1.301 -> r1.302)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml?r1=1.301&r2=1.302)
        cube.sgml (r1.7 -> r1.8)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/cube.sgml?r1=1.7&r2=1.8)
        datatype.sgml (r1.254 -> r1.255)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/datatype.sgml?r1=1.254&r2=1.255)
        dblink.sgml (r1.13 -> r1.14)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/dblink.sgml?r1=1.13&r2=1.14)
        ddl.sgml (r1.93 -> r1.94)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ddl.sgml?r1=1.93&r2=1.94)
        dict-xsyn.sgml (r1.3 -> r1.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/dict-xsyn.sgml?r1=1.3&r2=1.4)
        ecpg.sgml (r1.100 -> r1.101)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ecpg.sgml?r1=1.100&r2=1.101)
        func.sgml (r1.521 -> r1.522)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml?r1=1.521&r2=1.522)
        fuzzystrmatch.sgml (r1.5 -> r1.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/fuzzystrmatch.sgml?r1=1.5&r2=1.6)
        hstore.sgml (r1.12 -> r1.13)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/hstore.sgml?r1=1.12&r2=1.13)
        indexam.sgml (r2.33 -> r2.34)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/indexam.sgml?r1=2.33&r2=2.34)
        install-win32.sgml (r1.58 -> r1.59)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/install-win32.sgml?r1=1.58&r2=1.59)
        intagg.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/intagg.sgml?r1=1.4&r2=1.5)
        intarray.sgml (r1.10 -> r1.11)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/intarray.sgml?r1=1.10&r2=1.11)
        isn.sgml (r1.5 -> r1.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/isn.sgml?r1=1.5&r2=1.6)
        libpq.sgml (r1.316 -> r1.317)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/libpq.sgml?r1=1.316&r2=1.317)
        lo.sgml (r1.3 -> r1.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/lo.sgml?r1=1.3&r2=1.4)
        ltree.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ltree.sgml?r1=1.4&r2=1.5)
        monitoring.sgml (r1.80 -> r1.81)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/monitoring.sgml?r1=1.80&r2=1.81)
        oid2name.sgml (r1.8 -> r1.9)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/oid2name.sgml?r1=1.8&r2=1.9)
        pageinspect.sgml (r1.6 -> r1.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pageinspect.sgml?r1=1.6&r2=1.7)
        pgarchivecleanup.sgml (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgarchivecleanup.sgml?r1=1.1&r2=1.2)
        pgbench.sgml (r1.16 -> r1.17)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgbench.sgml?r1=1.16&r2=1.17)
        pgbuffercache.sgml (r2.6 -> r2.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgbuffercache.sgml?r1=2.6&r2=2.7)
        pgcrypto.sgml (r1.9 -> r1.10)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgcrypto.sgml?r1=1.9&r2=1.10)
        pgfreespacemap.sgml (r2.6 -> r2.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgfreespacemap.sgml?r1=2.6&r2=2.7)
        pgrowlocks.sgml (r1.5 -> r1.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgrowlocks.sgml?r1=1.5&r2=1.6)
        pgstandby.sgml (r2.11 -> r2.12)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgstandby.sgml?r1=2.11&r2=2.12)
        pgstatstatements.sgml (r1.6 -> r1.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgstatstatements.sgml?r1=1.6&r2=1.7)
        pgstattuple.sgml (r1.5 -> r1.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgstattuple.sgml?r1=1.5&r2=1.6)
        pgtrgm.sgml (r2.2 -> r2.3)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgtrgm.sgml?r1=2.2&r2=2.3)
        plperl.sgml (r2.86 -> r2.87)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/plperl.sgml?r1=2.86&r2=2.87)
        plpgsql.sgml (r1.155 -> r1.156)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/plpgsql.sgml?r1=1.155&r2=1.156)
        release-8.1.sgml (r1.7 -> r1.8)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-8.1.sgml?r1=1.7&r2=1.8)
        release-old.sgml (r1.1 -> r1.2)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-old.sgml?r1=1.1&r2=1.2)
        seg.sgml (r1.6 -> r1.7)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/seg.sgml?r1=1.6&r2=1.7)
        sql.sgml (r1.48 -> r1.49)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/sql.sgml?r1=1.48&r2=1.49)
        sslinfo.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/sslinfo.sgml?r1=1.4&r2=1.5)
        stylesheet.css (r1.9 -> r1.10)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/stylesheet.css?r1=1.9&r2=1.10)
        tablefunc.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/tablefunc.sgml?r1=1.4&r2=1.5)
        textsearch.sgml (r1.56 -> r1.57)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/textsearch.sgml?r1=1.56&r2=1.57)
        unaccent.sgml (r1.3 -> r1.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/unaccent.sgml?r1=1.3&r2=1.4)
        uuid-ossp.sgml (r1.2 -> r1.3)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/uuid-ossp.sgml?r1=1.2&r2=1.3)
        vacuumlo.sgml (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/vacuumlo.sgml?r1=1.4&r2=1.5)
        xaggr.sgml (r1.40 -> r1.41)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xaggr.sgml?r1=1.40&r2=1.41)
        xfunc.sgml (r1.151 -> r1.152)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xfunc.sgml?r1=1.151&r2=1.152)
        xml2.sgml (r1.8 -> r1.9)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xml2.sgml?r1=1.8&r2=1.9)
    pgsql/doc/src/sgml/ref:
        alter_domain.sgml (r1.25 -> r1.26)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_domain.sgml?r1=1.25&r2=1.26)
        alter_sequence.sgml (r1.25 -> r1.26)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_sequence.sgml?r1=1.25&r2=1.26)
        alter_type.sgml (r1.8 -> r1.9)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_type.sgml?r1=1.8&r2=1.9)
        create_index.sgml (r1.74 -> r1.75)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_index.sgml?r1=1.74&r2=1.75)
        grant.sgml (r1.83 -> r1.84)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/grant.sgml?r1=1.83&r2=1.84)