Thread: pgsql: Turn off deprecated bison warnings under MSVC

Turn off deprecated bison warnings under MSVC

These are disabled by the configure code, so this is just fixing an
inconsistency in the MSVC code.

Backpatch to all live branches.

Branch
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REL9_5_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/467b408321e4d3d7a753ecd8d651bf036ce9f3b7

Modified Files
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src/tools/msvc/pgbison.pl | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)