Thread: pgsql: In pg_upgrade, report errno string if file existence check retur

In pg_upgrade, report errno string if file existence check returns an
error and errno != ENOENT.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/b55743a5df13711b8143cd3f53c8abc3416ee520

Modified Files
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contrib/pg_upgrade/relfilenode.c |    5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)