Comment 4 for bug 1417947

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
}