psql describe.c cleanup

Hi all,

I use psql's -E mode every now and then, copy-and-pasting and further
tweaking the SQL displayed. Most queries are displayed terminated by a
semicolon, but quite a few aren't, making copy-and-paste just a bit
more tedious.

Attached is a patch to fix every SQL query I saw in describe.c. There
were also a few queries with trailing newlines, and I fixed those too.

And while I'm griping about describe.c, is it just me or is the source
code indentation in that file totally screwy? I'm using emacs and I've
loaded the snippet for pgsql-c-mode from
./src/tools/editors/emacs.samples into my ~/.emacs, but the
indentation of multiline strings still looks inconsistent. See
attached screenshot, e.g. the start of line 80 has four tabs and one
space, while line 79 has six tabs and two spaces?

Josh