gplugin/gplugin

Bump our required C standard to C17

14 months ago, Gary Kramlich
fe9a054ee717
Bump our required C standard to C17

Testing Done:
Compiled locally. I didn't bother compiling on everything else as we already know this works from /r/2248

Reviewed at https://reviews.imfreedom.org/r/2249/
The following individuals have contributed to this project.
Ankit Vani <a@nevitus.org>
EionRobb <eion@robbmob.com>
Elliott Sales de Andrade <quantum.analyst@gmail.com>
Gary Kramlich <grim@reaperworld.com>
Jason Scherer <schereja@gmail.com>
John Bailey <rekkanoryo@rekkanoryo.org>
Mike Ruprecht <cmaiku@gmail.com>
Olaf Hering <olaf@aepfle.de>
Paul Jimenez <pj@place.org>
Richard Laager <rlaager@pidgin.im>
Sorvival <sorvival@tutanota.com>
ivanhoe <ivanhoe@fiscari.de>