doc: simplify intermediate certificate mention in libpq docs
Backpatch-through: 9.3
Branch
------
REL9_5_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/29aecb94a3d94276b06d67b760d7de498cc0f36e
Modified Files
--------------
doc/src/sgml/libpq.sgml | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)