psql: Fix memory leak

In expanded auto mode, a lot of allocated memory was not cleaned up.

found by Coverity

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/1673122127f9f17f4ca6b214027c0806b0d502f4

Modified Files
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src/bin/psql/print.c |    3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

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	Subject: pgsql: psql: Avoid some spurious output if the server croaks.
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