Extract Digicam setting info from EXIF JPEG headers

Current version

Revision: 1

jhead requires the following formula to be installed:
xz 5.2.3 General-purpose data compression with high compression ratio

Recent formula history

ilovezfs jhead: remove unused jpeg dependency
Dominyk Tiller jhead: apply CVE-2016-3822 fix
Alex Dunn jhead: add jpeg dependency, update test
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Joep Loijens jhead 3.00

Formula code at GitHub