Docs for version 10 incorrectly claim that ~/.pgpass with 0600 perms work.

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/9.6/static/libpq-pgpass.html
Description:

https://www.postgresql.org/docs/10/static/libpq-pgpass.html

$ dpkg -l | grep -i postgres
ii libpq5:amd64 10.4-0ubuntu0.18.04
amd64 PostgreSQL C client library
ii postgresql-client 10+190
all front-end programs for PostgreSQL (supported version)
ii postgresql-client-10 10.4-0ubuntu0.18.04
amd64 front-end programs for PostgreSQL 10
ii postgresql-client-common 190
all manager for multiple PostgreSQL client versions

.pgpass does not work with 10.4

/home/ubuntu/.pgpass is 0600 (tried 0400 alsp), owner and group ubuntu with
psql run as ubuntu. I tried adding an extra carriage return at the end of
the file.

Using psql with a -w, I get `psql: fe_sendauth: no password supplied`.
Removing the -w, the error message is `psql: FATAL: password authentication
failed for user "ubuntu"` after entering a password.

I'm using the format from the doc page,
`hostname:port:database:username:password`. There are no special characters
in the user or pass (or anywhere).

The docs are wrong, apparently this has been deprecated.