Thanks for your report. I have exactly the same results here on a fully updated SME8b6 test installation, using
glibc-common-2.5-58.el5_6.3
glibc-2.5-58.el5_6.3.
These versions are currently in "smeupdates-testing" repository.
I suggest to change the Wiki accordingly. If you have a chance please do so otherwise I can do in the next few days.