- In appears that in Debian it is possible to set the timezones from one
of the listed items in zonetab.info or addtitional timezones from the
directory /usr/share/zoneinfo/Etc/. Add these too.
- By default all FreedomBox images have Etc/UTC as time zone. This is
now properly listed.
- After a time zone is set, don't show the option 'No time zone set' any
more.
- Change the label to 'no time zone set'
- Update the help text to 'time zone' instead of 'timezone'.
- Don't allow strings to be sent as arguments. The mixup with
lists/tuples could be dangerous.
- Don't escape arguments. subprocess.Popen takes care that arguments
are passed on nicely to the actions.
- Update tests.