pgsql: Further tweaking of deadlock isolation tests.

Further tweaking of deadlock isolation tests.

The new deadlock-soft-2 test has a timing dependency too: it supposes
that isolationtester will detect step s1b as waiting before the deadlock
detector runs and grants it the lock.  Adjust deadlock_timeout to ensure
that that's true even in CLOBBER_CACHE_ALWAYS builds, where the wait
detection query is quite slow.  Per buildfarm member jaguarundi.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/caefc11ef6613683ddf8ded2081da3db238f463e

Modified Files
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src/test/isolation/specs/deadlock-soft-2.spec | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)