This improves output speed significantly, especially if the write
callback is expensive (e.g. issues a syscall or takes a lock).
On my test system, jsoncat citylots.json > /dev/null improves from
~2.8s to ~1.7s.
citylots.json: https://github.com/zemirco/sf-city-lots-json (~181 MiB)
Change-Id: I7d411ce92366712ed87ad5fc6e9b64828541db4d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
a509ddeb24