chore(formula): update formula file

FORMULA

@@ -1,9 +1,9 @@
 name: syslog_ng
-os: Debian, Ubuntu, Raspbian, RedHat, Fedora, CentOS, Suse, openSUSE, Gentoo, Funtoo, Arch, Manjaro, Alpine, FreeBSD, OpenBSD, Solaris, SmartOS, MacOS
-os_family: Debian, RedHat, Suse, Gentoo, Arch, Alpine, FreeBSD, OpenBSD, Solaris, MacOS
+os: Debian, Ubuntu, RedHat, Fedora, CentOS, Suse, openSUSE
+os_family: Debian, RedHat, Suse
 version: 1.0
 release: 1
-minimum_version: 2016.11
+minimum_version: 2017.7
 summary: Syslog-NG formula
 description: Formula to use to install and configure syslog_ng
 top_level_dir: syslog_ng