* adjtimex.c (compare): In case of absence of /etc/adjtime, do not fail, and do not force users to manually create it with 0.0 content. Instead, proceed assuming zero values (meaning RTC does not drift). Also replace redundant code by a call to get_cmos_adjustment(). README: Rewrite USAGE paragraph. Remove point about creating zero adjfile. Document new behaviour without adjfile. Remove reference to the long outdated clock(8). Update URL for hwclock(8). (Thanks to Alain Guibert <alguibert@free.fr>, closes:bug#445448)
* adjtimex.c (busy_wait): timestamp more closely the RTC clock beat (thanks to Alain Guibert <alguibert at free.fr>, see Debian bug#443814). (usage): --directisa switch forces adjtimex to poll the update-in-process (UIP) flag of the CMOS clock (thanks to Alain Guibert <alguibert at free.fr>, closes:bug#443773).