Обсуждение: pgsql: Fix back-patch of "Invalidate acl.c caches when pg_authid change

Fix back-patch of "Invalidate acl.c caches when pg_authid changes."

Test script role names and error messages differed in v10, 9.6 and 9.5.

Discussion: https://postgr.es/m/20201221095028.GB3777719@rfd.leadboat.com

Branch
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REL_10_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/d176b9d5e187fc0317f04847fab0d284d467edb8

Modified Files
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src/test/regress/expected/privileges.out | 6 +++---
src/test/regress/sql/privileges.sql      | 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)