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)