sleep "bug"

[Roy M. LeCates]

sleep (GNU sh-utils) 2.0

The sleep utility appears not to ignore certain signals,
such as STOP and CONT.  Thus, the following occurs:

[5:22pm] >sleep 10000
^Z
Suspended
[5:22pm] >bg
[1]    sleep 10000 &
[1]    Done                          sleep 10000
[5:22pm] >

If the implementation is using ALRM, then it should check
*only* for ALRM signals.

-Roy