[CentOS] "yum -yq --security check-update" spouting lots of text?

Mon Nov 8 20:15:58 UTC 2010
Dave <tdbtdb+centos at gmail.com>

uname -a
Linux  2.6.18-194.17.4.el5.centos.plus #1 SMP Tue Oct 26 04:07:11 EDT 2010
x86_64 x86_64 x86_64 GNU/Linux

I thought -q meant 'no output'. Recently yum -q has started spewing the
following garbage, can anyone tell me why?
thanks,
Dave

# yum -yq --security check-update 2>/dev/null
Loaded plugins: fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
 * addons: mirror.5ninesolutions.com
 * base: ftp.osuosl.org
 * centosplus: centos.promopeddler.com
 * contrib: mirrors.kernel.org
 * epel: mirror.pnl.gov
 * extras: mirror.rocketinternet.net
 * rpmforge: ftp-stud.fht-esslingen.de
 * rpmfusion-free-updates: mirror.web-ster.com
 * rpmfusion-free-updates-testing: mirror.web-ster.com
 * rpmfusion-nonfree-updates: mirror.web-ster.com
 * rpmfusion-nonfree-updates-testing: mirror.web-ster.com
 * updates: mirrors.cat.pdx.edu
Limiting package lists to security relevant ones
No packages needed, for security, 31 available

aalib.x86_64
1.4.0-5.el5.rf                                                      rpmforge

blas.x86_64
3.1.1-1.el5.rf                                                      rpmforge

cadaver.x86_64
0.22.5-1.el5.rf                                                     rpmforge

dnsmasq.x86_64
2.55-1.el5.rf                                                       rpmforge

emacs-git.x86_64
1.7.3-1.el5.rf                                                      rpmforge

enca.x86_64
1.10-1.el5.rf                                                       rpmforge

gdal.x86_64
1.4.4-2.el5.rf                                                      rpmforge

geos.x86_64
3.2.2-1.el5.rf                                                      rpmforge

git.x86_64
1.7.3-1.el5.rf                                                      rpmforge

hdf5.x86_64
1.8.0-1.el5.rf                                                      rpmforge

iso-codes.noarch
1.0a-1.el5.rf                                                       rpmforge

lapack.x86_64
3.1.1-1.el5.rf                                                      rpmforge

lftp.x86_64
4.0.10-1.el5.rf                                                     rpmforge

libextractor.x86_64
0.5.22-2.el5.rf                                                     rpmforge

libmpcdec.x86_64
1.2.6-1.el5.rf                                                      rpmforge

libpaper.x86_64
1.1.22-1.el5.rf                                                     rpmforge

libwpd.x86_64
0.8.14-1.el5.rf                                                     rpmforge

mtr.x86_64
2:0.80-1.el5.rf                                                     rpmforge

netcdf.x86_64
3.6.3-1.el5.rf                                                      rpmforge

netcdf-devel.x86_64
3.6.3-1.el5.rf                                                      rpmforge

perl-Compress-Zlib.noarch
2.015-1.el5.rf                                                      rpmforge

perl-DBI.x86_64
1.615-1.el5.rf                                                      rpmforge

perl-Git.x86_64
1.7.3-1.el5.rf                                                      rpmforge

perl-HTML-Parser.x86_64
3.68-1.el5.rf                                                       rpmforge

perl-HTML-Tagset.noarch
3.20-1.el5.rf                                                       rpmforge

proj.x86_64
4.7.0-1.el5.rf                                                      rpmforge

rsync.x86_64
3.0.7-1.el5.rf                                                      rpmforge

syslinux.x86_64
4.03-1.el5.rf                                                       rpmforge

udftools.x86_64
1.0.0b3-3.el5.rf                                                    rpmforge

xvidcore.x86_64
1.2.2-1.el5.rf                                                      rpmforge

Obsoleting Packages
perl-IO-Compress.noarch
2.030-2.el5.rf                                                      dag


perl-Compress-Zlib.x86_64
1.42-1.fc6
installed
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