g_get_os_info() needs implementing on macOS
function g_get_os_info with G_OS_INFO_KEY_ID return null on MacOS, because there are no files like:
/etc/os-release, /usr/lib/os-release
Edited by Philip Withnall
function g_get_os_info with G_OS_INFO_KEY_ID return null on MacOS, because there are no files like:
/etc/os-release, /usr/lib/os-release