The order of columns about WAL activity in pg_stat_statements

Hi,

https://www.postgresql.org/docs/devel/pgstatstatements.html

In pg_stat_statements docs, the columns about WAL activity are put
in the table in the order of wal_bytes, wal_records and wal_fpi. But
in the definition of pg_stat_statements view, wal_bytes is put last.
So I think that it's better to reorder those columns in a consistent
with the view definition. Patch attached. Thought?

Regards,

-- 
Fujii Masao
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION