pgsql: test_json_parser: Fix broken file ref and inverted result check

test_json_parser: Fix broken file ref and inverted result check

A comma following a file ref in a perl print statement makes the
statement just print the file's GLOB rather than redirecting the
following arguments to the file. This meant the test was not testing any
contents and the logs were instead bulked up with what the test was
supposed to be testing.

Also, run_log() returns 1 for success, not 0, so the tests for the
return values were wrong. (We were getting 0 because of the comma error
above.)

Backpatch-thru: 17

Branch
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REL_19_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/96c34b1a8bb5b083c5f4cf5eee91e5edd63e8edd

Modified Files
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src/test/modules/test_json_parser/t/004_test_parser_perf.pl | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)