from volker' plage.pl, thanks!
from volker' plage.pl
"return" statement followed by "sort" at line 140, column 2. Behavior is undefined if called in scalar context. (Severity: 5) the fix is the same as in volker' plage(1).
release 0.5 (tags/0.5)
Don't want to add a configure script for this, so to aid portability and avoid having to link to libbsd pretend we don't have these two niceties. err/warn are still in use and won't be removed.