postgresql test failures

[Ben Pfaff]

I've recently had to move development to a new laptop because my
previous one died suddenly.  I'm getting the following test failure
reliably on the new one.  I don't know much about postgresql setup, so
I'd appreciate any advice.

#                             -*- compilation -*-
250. get-data-psql.at:147: testing GET DATA /TYPE=PSQL ...
../../tests/get-data-psql.at:149: PATH=$PG_PATH:$PATH initdb -A trust
stdout:
The files belonging to this database system will be owned by user "blp".
This user must also own the server process.

The database cluster will be initialized with locale "C".
The default database encoding has accordingly been set to "SQL_ASCII".
The default text search configuration will be set to "english".

Data page checksums are disabled.

creating directory 
/home/blp/pspp/master/_build/tests/testsuite.dir/0250/cluster ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting dynamic shared memory implementation ... posix
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok

Success. You can now start the database server using:

    pg_ctl -D /home/blp/pspp/master/_build/tests/testsuite.dir/0250/cluster -l 
logfile start

../../tests/get-data-psql.at:149: PATH=$PG_PATH:$PATH pg_ctl start -w -o "-k 
$socket_dir -h ''"
stdout:
waiting for server to start....2019-01-19 09:12:25.681 PST [21495] LOG:  
listening on Unix socket "/tmp/tmp.xPYKH8shgE/.s.PGSQL.6543"
2019-01-19 09:12:25.719 PST [21557] LOG:  database system was shut down at 
2019-01-19 09:12:25 PST
2019-01-19 09:12:25.729 PST [21495] LOG:  database system is ready to accept 
connections
 done
server started
../../tests/get-data-psql.at:149: PATH=$PG_PATH:$PATH createdb -h "$socket_dir" 
-p $PG_PORT $PG_DBASE
stderr:
stdout:
../../tests/get-data-psql.at:149: psql -h "$socket_dir" -p $PG_PORT $PG_DBASE < 
populate.sql
--- /dev/null   2019-01-14 21:20:12.627999704 -0800
+++ /home/blp/pspp/master/_build/tests/testsuite.dir/at-groups/250/stderr       
2019-01-19 09:12:26.099989467 -0800
@@ -0,0 +1 @@
+psql: FATAL:  database "blp" does not exist
stdout:
2019-01-19 09:12:26.102 PST [21859] FATAL:  database "blp" does not exist
../../tests/get-data-psql.at:149: exit code was 2, expected 0
server shutting down
250. get-data-psql.at:147: 250. GET DATA /TYPE=PSQL (get-data-psql.at:147): 
FAILED (get-data-psql.at:149)