encoding problem detection issue

Hello

Could I ask for your help.

I followed this example:

http://www.w3.org/International/questions/qa-validator-charset-check.en

but it didn't catch the corrupt characters in the following page, any ideas?


http://man7.org/linux/man-pages/man1/hostname.1.html




See text below with ??


Information about the project can be found at
       ??http://net-tools.sourceforge.net/??.  If you have a bug report for
       this manual page, see ??http://net-tools.sourceforge.net/??.


The bytes seem to be some multi byte E2 9F A8

I'm not a member on this list, so please keep my email in replies.

Regards, Jonny