dmesg: operation not permitted as user

After upgrading to Slackware64 13.37, I cannot access the kernel syslog (dmesg) as user. This problem is caused by kernel (2.6.37.3) setting in Slackware (see pictures below).

There are 2 solutions, you are freely to choose one of them.

Solution 1: add these lines on your rc.local:

if [ -r /proc/sys/kernel/dmesg_restrict ]; then
    if [ $(cat /proc/sys/kernel/dmesg_restrict) = 1 ]; then
        echo 0 > /proc/sys/kernel/dmesg_restrict
    fi
fi

Solution 2: change the correspond kernel setting (restrict unprivileged access to the kernel syslog) to "N" then recompile the kernel.