vzctl start: fix start of Fedora 15 CT on RHEL6 kernel

The check for /proc/cgroups existance in fix_ve_systemd() is wrong --
current RHEL6 kernel (042stab017) has this file in the host system, but
it doesn't mean that cgroups are supported inside containers.

Fixes #1906.
http://bugzilla.openvz.org/1906

Reported-by: Scott Dowdle <dowdle@montanalinux.org>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed