Fix srv_uptime evaluation for RabbitMQ OCF

[Bogdan Dobrelya]

The original condition for srv_uptime was https://github.com/stackforge/fuel-library/blob/stable/6.0/deployment/puppet/nova/files/ocf/rabbitmq#L227 for 6.0

In 6.1 it was changed to the reverse one and should be fixed
https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/cluster/files/ocf/rabbitmq#L249

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/152839

[Bogdan Dobrelya (bogdando)]

This issue impacts the full rabbitmq cluster reassemble case, so it was set to the high

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/152839
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=5f0b093894ab2f4ad04b15ef65216b634c0aa05e
Submitter: Jenkins
Branch: master

commit 5f0b093894ab2f4ad04b15ef65216b634c0aa05e
Author: Bogdan Dobrelya <email address hidden>
Date: Wed Feb 4 10:38:15 2015 +0100

    Fix srv_uptime for rabbit OCF

    The original condition for srv_uptime was
    if "x$stime" != "x(null)"
    In 6.1 it was changed to the reverse one and should be fixed

    Closes-bug: #1417947

    Change-Id: Ic11f775acaa19915f2e2a4ce93e24b9884d8d10d
    Signed-off-by: Bogdan Dobrelya <email address hidden>

[Alexander Nevenchannyy (anevenchannyy)]

Verified on MOS 6.1 ISO #429
Steps to Verify:
Current srv_uptime function contains:
srv_uptime() {
    local stime
    stime=$( crm_attribute -N `hostname` -l reboot --name 'rabbit-start-time' --query 2>/dev/null | awk '{print $3}' | awk -F "=" '{print $2}' | sed -e '/(null)/d' )

    if [ -z "${stime}" -o x"${stime}" == x"(null)" ] ; then
        echo 0
    else
        echo $(( $(now) - ${stime} ))
    fi

    return $OCF_SUCCESS
}