=over 4
+=item A thread exited while %d other threads were still running
+
+(W) When using threaded Perl, a thread (not necessarily the main
+thread) exited while there were still other threads running.
+Usually it's a good idea to first collect the return values of the
+created threads by joining them, and only then exit from then main
+thread. See L<threads>.
+
=item accept() on closed socket %s
(W closed) You tried to do an accept on a closed socket. Did you forget
If you actually want to pack Unicode codepoints, use the C<"U"> format
instead.
-=item Cleanup skipped %d active threads
-
-(W) When using threaded Perl, the main thread exited while there were
-still other threads running. This is not a good sign: you should
-either explicitly join the threads, or somehow be certain that all
-the non-main threads have finished. See L<threads>.
-
=item close() on unopened filehandle %s
(W unopened) You tried to close a filehandle that was never opened.
(F) The second argument of 3-argument open() is not among the list
of valid modes: C<< < >>, C<< > >>, C<<< >> >>>, C<< +< >>,
-C<< +> >>, C<<< +>> >>>, C<-|>, C<|->.
+C<< +> >>, C<<< +>> >>>, C<-|>, C<|->, C<< <& >>, C<< >& >>.
=item Unknown process %x sent message to prime_env_iter: %s