Minor updates for back-branch release notes.
Improve entry for commits 79b101486 et al. based on comments
from Peter Geoghegan.
ASCII-ify Ante Krešić's name, because our PDF docs toolchain
can't cope with "ć".
Branch
------
REL_18_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/c58a86e1d312cc75d6ff6c0f045463139d6db6f5
Modified Files
--------------
doc/src/sgml/release-18.sgml | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)