Add %x to PROMPT1 and PROMPT2 - Mailing list pgsql-hackers

I cannot ever think of a time when I don't want to know if I'm in a
transaction or not (and what its state is).  Every new setup I do, I add
%x to the psql prompt.

I think it should be part of the default prompt.  Path attached.
-- 
Vik Fearing