Commits
David Li authored and Antoine Pitrou committed 954577b078c
ARROW-14700: [C++] Only check zone offset sign when offset present Fixes a Valgrind failure. Closes #11695 from lidavidm/arrow-14700 Authored-by: David Li <li.davidm96@gmail.com> Signed-off-by: Antoine Pitrou <antoine@python.org>