Merge branch 'hwclock-jwp-reviewed' of git://github.com/kerolasa/lelux-utiliteetit

* 'hwclock-jwp-reviewed' of git://github.com/kerolasa/lelux-utiliteetit: (25 commits)
  hwclock: remove --compare option
  hwclock: remove trailing dot from messages that include system error message
  hwclock: make --date=argument less prone to injection
  hwclock: fix rtc atexit registration
  hwclock: clarify cmos inb and outb preprocessor directives
  hwclock: try RTCGET and RTCSET only when normal rtc fails
  hwclock: stream line synchronize_to_clock_tick_rtc()
  hwclock: improve coding style
  hwclock: remove division by zero [asan]
  hwclock: add debugging to open_rtc()
  hwclock: remove magic constants from interpret_date_string()
  hwclock: use symbolic magic values passed in between functions
  hwclock: initialize struct adjtime members
  hwclock: alloate date_resp parsing buffer in interpret_date_string()
  hwclock: simplify save_adjtime() execution flow
  hwclock: remove dead code and other minor fixes
  hwclock: move error messages to determine_clock_access_method()
  hwclock: clarify set_cmos_epoch() code
  hwclock: move command-line options to control structure
  hwclock: remove unnecessary type casts
  ...

diff --cc configure.ac
Simple merge