Sync pg_bsd_indent's copyright notices with Postgres practice.
To avoid confusion, make the copyright notices in these files
match the 3-clause form of the BSD license, per the blanket
policy update that UC Berkeley issued years ago.
Discussion: https://postgr.es/m/
3935719.
1675967430@sss.pgh.pa.us
Discussion: https://postgr.es/m/
20230123011002.fzcaa3krql3mqsfn@awork3.anarazel.de