* wait for error.[hc] that can include the other/be included by the other
  or swich to err.[hc] (also switching to err())
* maybe make lines.[hc] with getlines, sortedp permute & c. instead of
  getlines.[hc] and sortedp.[hc]
* make an unsort program aswell
* fix output in configure test of sys_errlist
* fix output in configure test of /dev/(u)random
* print seed to stderr when run with --verbose?
* move maintainer-targets into Makefile
