- update to 6.12:
* Fix compiler warning over log message format
* Fix some typos in force-reseed documentation in rngd man page
* Improve --list option so that we properly capture entropy sources
that are available and configured on at build time, but failed
initalization at run time (due to lack of hw, or some other error, etc)
* Drop the use of libsysfs - we only used it to access a single file,
and we can do so with a simple open/read/close.
Given the lack of maintenance of libsysfs, we can save lots of
effort by dropping this lib