Defend against null error message reported by libxml2.
While this isn't really supposed to happen, it can occur in OOM
situations and perhaps others. Instead of crashing, substitute
"(no message provided)".
I didn't worry about localizing this text, since we aren't
localizing anything else here; besides, if we're on the edge of
OOM, it's unlikely gettext() would work.
Report and fix by Sergio Conde Gómez in bug #15624.
Discussion: https://postgr.es/m/15624-4dea54091a2864e6@postgresql.org
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/0edef16d76beb8286cc832e4e1daf1f16b3d8f4a
Modified Files
--------------
src/backend/utils/adt/xml.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
