pgsql: Fix compiler warning induced by commit d8b15eeb8.

pgsql: Fix compiler warning induced by commit d8b15eeb8.

Fix compiler warning induced by commit d8b15eeb8.

I forgot that INT64_FORMAT can't be used with sscanf on Windows.
Use the same trick of sscanf'ing into a temp variable as we do in
some other places in zic.c.

The upstream IANA code avoids the portability problem by relying on
's SCNdFAST64 macro.  Once we're requiring C99 in all
branches, we should do likewise and drop this set of diffs from
upstream.  For now, though, a hack seems fine, since we do not
actually care about leapseconds anyway.

Discussion: https://postgr.es/m/4e5d1a5b-143e-e70e-a99d-a3b01c1ae7c3@2ndquadrant.com

Branch
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REL9_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/08a2e40d1434d7775e67fd2857f9615bf60ca3b2

Modified Files
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src/timezone/zic.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)