Note that a return value of C<-1> could mean that child processes are
being automatically reaped, as described in L<perlipc>.
-If you use wait in your handler for $SIG{CHLD} it may accidently wait for the
+If you use wait in your handler for $SIG{CHLD} it may accidentally for the
child created by qx() or system(). See L<perlipc> for details.
=item waitpid PID,FLAGS