pgsql: Stamp release 7.3.8.

Log Message:
-----------
Stamp release 7.3.8.

Tags:
----
REL7_3_STABLE

Modified Files:
--------------
    pgsql:
        HISTORY (r1.182.2.19 -> r1.182.2.20)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/HISTORY.diff?r1=1.182.2.19&r2=1.182.2.20)
        INSTALL (r1.88.2.7 -> r1.88.2.8)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/INSTALL.diff?r1=1.88.2.7&r2=1.88.2.8)
        configure (r1.226.2.15 -> r1.226.2.16)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.226.2.15&r2=1.226.2.16)
        configure.in (r1.217.2.14 -> r1.217.2.15)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.217.2.14&r2=1.217.2.15)
    pgsql/doc:
        bug.template (r1.21.2.7 -> r1.21.2.8)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/bug.template.diff?r1=1.21.2.7&r2=1.21.2.8)
    pgsql/doc/src/sgml:
        release.sgml (r1.163.2.18 -> r1.163.2.19)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.163.2.18&r2=1.163.2.19)
    pgsql/src/include:
        pg_config.h.win32 (r1.8.2.7 -> r1.8.2.8)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config.h.win32.diff?r1=1.8.2.7&r2=1.8.2.8)
    pgsql/src/interfaces/libpq:
        libpq.rc (r1.9.2.7 -> r1.9.2.8)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/libpq.rc.diff?r1=1.9.2.7&r2=1.9.2.8)