spec: add nm-openvpn/n-openvpn user/group

It is required to be able to run as non-root user.

https://git.gnome.org/browse/network-manager-openvpn/commit/?h=nm-1-0&id=87631c2867f1102e365243fabb2828c8b4eac2cc
http://fedoraproject.org/wiki/Packaging:UsersAndGroups
Signed-off-by: Jiří Klimeš <jklimes@redhat.com>

NetworkManager-openvpn.spec

@@ -24,6 +24,7 @@ Requires: gtk3
 Requires: dbus
 Requires: NetworkManager
 Requires: openvpn
+Requires(pre): shadow-utils
 Requires: shared-mime-info
 Obsoletes: NetworkManager-openvpn < 1:0.9.8.2-3
 
@@ -68,6 +69,13 @@ make %{?_smp_mflags}
 %check
 make check
 
+%pre
+getent group nm-openvpn >/dev/null || groupadd -r nm-openvpn
+getent passwd nm-openvpn >/dev/null || \
+    useradd -r -g nm-openvpn -d / -s /sbin/nologin \
+    -c "Default user for running openvpn spawned by NetworkManager" nm-openvpn
+exit 0
+
 %install
 make install DESTDIR=%{buildroot} INSTALL="%{__install} -p"
 
@@ -90,6 +98,9 @@ rm -f %{buildroot}%{_libdir}/NetworkManager/lib*.la
 %{_datadir}/gnome-vpn-properties/openvpn/nm-openvpn-dialog.ui
 
 %changelog
+* Fri Aug 28 2015 Lubomir Rintel <lkundrak@v3.sk> - 1:1.0.6-3
+- Create an user for unprivileged runs
+
 * Fri Aug 28 2015 Lubomir Rintel <lkundrak@v3.sk> - 1:1.0.6-2
 - Update the BRs