Commits
Micah Kornfield authored and Benjamin Kietzman committed 3de4c6f4de0
ARROW-13669: [C++] Fix variant emplace methods (add brackets) Closes #10962 from emkornfield/fix_variant Authored-by: Micah Kornfield <micahk@google.com> Signed-off-by: Benjamin Kietzman <bengilgit@gmail.com>