Fix for debugger setup bug introduced in commit
f1110568

Avoid interleaving labels and output from various components of
   a pack job

This allocates an array to the proper size (based upon all tasks
  to be launched). Work still needed to populate the data structure
  properly for all tasks.

No change in logic

The debugger symbol in srun is not being properly handled today.
  This change does the malloc once, even for a pack-job, makes
  the array over-sized, and range checks before writes. Suitable
  for making srun progress without memory errors (writing off end
  of allocated memory in an array).

Major re-write of task state container logic to support for list of
  containers rather than one container per srun command.

Modify all daemons to re-open log files on receipt of SIGUSR2 signal.  This
    is much than using SIGHUP to re-read the configuration file and rebuild
    various tables.
bug 3070

debug.

No changes to logic

bug 3979

Bug 3967

Bug 3979 and 3989

This reverts commit d49081df.

Bug 3979 and 3989

This isn't a memory leak, but does show memory not freed.

No changes in logic

Test was failing sometimes due to varying Expect buffering

will have a time displayed when truncating time.

Bug 3940.

Otherwise we can end up printing Start times greater than End times,
leading to confusion when reading sacct output. 0 is displayed as Unknown.
Cosmetic change.

Bug 3940.

Now have one launch step per pack job component, so no duplicate
launch errors

This behavior was introduced in bug 2504, commit 7fb0c981 and bug 2643
commit 988edf12 respectively.

The reasoning is that sysadmins who see nodes with Reason "Not Responding"
but they can manually ping/access the node end up confused. That reason
should only be set if the node is trully not responding, but not if the
HealthCheckProgram execution failed or returned non-zero exit code. For
that case, the program itself would take the appropiate actions, such
as draining the node and setting an appropiate Reason.

Bug 3931

Use it for setting output label when the output/error file name
  includes the "%N" format option (node name, e.g. "--output=out.%N").