Patch for "Bug of PL/pgSQL parser"

   Some weeks ago i wrote about one problem(called as 
"Bug of PL/pgSQL parser"):

"eutm" <eutm@yandex.ru> writes:
> Dear Sirs!:)I encounted one small problem,working with
> PostgreSQL 7.3devel.It can look a
> bit strange,but i have to use whitespaces in names of
databases,tables,fields
> and so on(like "roomno jk").It's possible to create them all and work
with them
> (INSERT,DELETE,UPDATE),but PL/pgSQL parser(compiler ?) can't execute such
> statements...

Today i send a simple patch(my first:)).                                        Regards,Eugene.