little psql additions

I append two little patches to psql.  One is for \v.  It is very simple
in that it ignores multibyte stuff, for example.

template1=# \v
Client:
PostgreSQL 7.3devel on i686-pc-linux-gnu, compiled by GCC 2.96
Server:
PostgreSQL 7.2.1 on i686-pc-linux-gnu, compiled by GCC 2.96

The second enables tab-complete to analyze.  It ignores schema stuff (so
does every tab-completion command AFAICS)

--
Alvaro Herrera (<alvherre[a]atentus.com>)
"Nunca se desea ardientemente lo que solo se desea por razon" (F. Alexandre)