doc: Fix description WAL writer in glossary
The WAL writer is an auxiliary process, but its description in the
glossary did not match that.
This is inexact since d3014fff4cd4.
Author: Masahiro Ikeda
Discussion: https://postgr.es/m/d3a5a4278fd8d9e7a47c6aa4db9e9a39@oss.nttdata.com
Backpatch-through: 15
Branch
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REL_15_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/37c5e5f4d45c66b5b43d976d50fbd04488f2c8ef
Modified Files
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doc/src/sgml/glossary.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)