timetool uses the config file /etc/sysconfig/clock generated
by timeconfig and assumes that if the hw clock is UTC,
/etc/sysconfig/clock contains the regular expression ".*GMT.*".
But unfortunately, what is expected is the string "UTC="yes""
when the hw clock is UTC.
Because of this wrong regexp, timetool does not work well when
the hw clock is UTC.
This is fixed in the currently shipping timetool.