Обсуждение: pgsql: Fix commit 641a5b7a144 for "nbsp" output in SVG files

Fix commit 641a5b7a144 for "nbsp" output in SVG files

In commit 641a5b7a144, I removed "nbsp" characters from SVG files, not
realizing the SVG files were generated from GV files and that the "nbsp"
characters were caused by trailing ASCII spaces in GV files.  This
commit restores the "nbsp" SVG characters and adds a GV comment about
how the trailing spaces cause the "nbsp" output.

Reported-by: Peter Eisentraut

Discussion: https://postgr.es/m/2c5dd601-b245-4092-9c27-6d1ad51609df%40eisentraut.org

Backpatch-through: master

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/6e80951f49f3bc18b5bdfb7e87bc2e0bcfb4af00

Modified Files
--------------
doc/src/sgml/images/genetic-algorithm.gv  | 1 +
doc/src/sgml/images/genetic-algorithm.svg | 4 ++--
2 files changed, 3 insertions(+), 2 deletions(-)