Updates still available after install

After installation of centmin.sh

---

Code:

# yum check-update
Loaded plugins: downloadonly, fastestmirror, priorities
Loading mirror speeds from cached hostfile
 * base: centos.mirror.triple-it.nl
 * epel: nl.mirror.eurid.eu
 * extras: centos.mirror.triple-it.nl
 * rpmforge: nl.mirror.eurid.eu
 * updates: mirror.yourwebhoster.eu
1595 packages excluded due to repository priority protections

audit-libs.i686                     2.2-4.el6_5                          updates
ethtool.i686                        2:3.5-1.4.el6_5                      updates
gnutls.i686                         2.8.5-14.el6_5                       updates
iproute.i686                        2.6.32-32.el6_5                      updates
libblkid.i686                       2.17.2-12.14.el6_5                   updates
libtasn1.i686                       2.3-6.el6_5                          updates
libuuid.i686                        2.17.2-12.14.el6_5                   updates
tzdata.noarch                       2014d-1.el6                          updates
util-linux-ng.i686                  2.17.2-12.14.el6_5                   updates

shouldn't those be updated already by including yum -y update in centmin.sh?