etc/dists/scripts/redhat-add_ip.sh: hide a false error message

In cases where are no IPs assigned to a container, we have the following
error message from the script:

	grep: ifcfg-venet0:*: No such file or directory

Since it's pretty normal (i.e. not an error at all), hide it.

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed