Обсуждение: pgsql: Update copyrights for 2020

Update copyrights for 2020

Backpatch-through: update all files in master, backpatch legal files through 9.4

Branch
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REL9_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/15eb1b66a4e5a9236f5a4a53f1def5ebca81768b

Modified Files
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COPYRIGHT               | 2 +-
doc/src/sgml/legal.sgml | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)