pgsql: doc: Fix outdated doc in pg_rewind.

doc: Fix outdated doc in pg_rewind.

Update pg_rewind documentation to reflect the change that data checksums are
now enabled by default during initdb.

Backpatch to v18, where data checksums were changed to be enabled by default.

Author: Zhijie Hou <houzj.fnst@fujitsu.com>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/TY4PR01MB16907D62F3A0A377B30FDBEA794B2A@TY4PR01MB16907.jpnprd01.prod.outlook.com
Backpatch-through: 18

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b9ee5f2dcba2ae2e6bfca6c873fb2708970f2c81

Modified Files
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doc/src/sgml/ref/pg_rewind.sgml | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)