Log Message:
-----------
Add \shell and \setshell meta commands to pgbench.
\shell command runs an external shell command.
\setshell also does the same and sets the result to a variable.
original patch by Michael Paquier with some editorialization by Itagaki,
and reviewed by Greg Smith.
Modified Files:
--------------
pgsql/contrib/pgbench:
pgbench.c (r1.92 -> r1.93)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pgbench/pgbench.c?r1=1.92&r2=1.93)
pgsql/doc/src/sgml:
pgbench.sgml (r1.10 -> r1.11)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgbench.sgml?r1=1.10&r2=1.11)