BUG #13469: Systematic typo in dblink documentation

The following bug has been logged on the website:

Bug reference:      13469
Logged by:          Erwin Brandstetter
Email address:      brsaweda@gmail.com
PostgreSQL version: 9.4.4
Operating system:   OS independent, documentation bug
Description:

Affects all versions of the manual including /devel.

In the syntax description at the top for each dblink function, the argument
name is "connname" (with 3 n), but the reference to it in the text reads
"conname" (with 2 n).

http://www.postgresql.org/docs/current/interactive/contrib-dblink-connect.html
http://www.postgresql.org/docs/current/interactive/contrib-dblink-connect-u.html
Etc.

To stay in sync with the other argument "connstr", I suppose to use the
prefix "con" instead of "conn" for arguments globally in the dblink
documentation.

So:

  s/connname/conname/g
  s/connstr/constr/g


Regards
Erwin