pgsql: Fix comment of tsquerysend()

Fix comment of tsquerysend()

The comment describes the order in which fields are sent, and it had one
of the fields in the wrong place.

This has been wrong since e6dbcb72fafa (2008), so backpatch all the way
back.

Author: Emre Hasegeli <emre@hasegeli.com>
Discussion: https://postgr.es/m/CAE2gYzzf38bR_R=izhpMxAmqHXKeM5ajkmukh4mNs_oXfxcMCA@mail.gmail.com

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/d2d3cd056dc451f8a7dcd343c9e44a901d177a25

Modified Files
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src/backend/utils/adt/tsquery.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)