PM-798 we want to display the condor job stderr if analyser detects
the job failed but the exitcode for the task is 0 . This case can
occur in pegasus lite mode where the compute job succeeded but the
transfer of output files to staging site failed.
PM-798 pegasus-analyzer by default ignores tasks that have kickstart
exitcode is 0. this is for the case, where there is a clustered job in
sharedfs mode that failed, and we only wwant to print tasks in the
clustered job that actually failed.

So to consider a task with exitcode as 0 for printing in
pegasus-analyzer output, we add extra logic to detect the case whether
all tasks in a failed condor job succeeded. If that is the case, then
we can assume that the task with kickstart exitcode have to be
considered for printing.