Commits
Dhruv Vats authored and David Li committed 0b19a68b0aa
ARROW-15869: [C++] Fix Valgrind failure (uninitialized value) Fix Valgrind failure (uninitialized value) in `hash_one` kernel tests in the arrow-compute-aggregate-test by adding `PrintTo()` to Scalar to be used by GTEST. Closes #12608 from dhruv9vats/ARROW-15869-valgrind-error Authored-by: Dhruv Vats <dhruv25vats@gmail.com> Signed-off-by: David Li <li.davidm96@gmail.com>