pgsql: Log PostgreSQL version number on startup

Log PostgreSQL version number on startup

Logging the PostgreSQL version on startup is useful for two reasons:
There is a clear marker in the log file that a new postmaster is
beginning, and it's useful for tracking the server version across
startup while upgrading.

Author: Christoph Berg <christoph.berg@credativ.de>
Discussion: https://www.postgresql.org/message-id/flat/20181121144611.GJ15795@msg.credativ.de/

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/689d15e95e3509554fbc1afd231b41f4a1fee669

Modified Files
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src/backend/postmaster/postmaster.c | 4 ++++
1 file changed, 4 insertions(+)