pgsql: doc: improve config syncfs wording

doc: improve config syncfs wording

Reported-by: Eric Mutta

Discussion: /messages/by-id/166126549332.651.12934187158820082671@wrigleys.postgresql.org

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/eb544d7fd966ce8718573ffeb17dfe6d0952e642

Modified Files
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doc/src/sgml/config.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)