Comment 5 for bug 1507681

SRU-Template:

[Impact]

 * killall with exactly 65 (33 in 32-bit environments) arguments can kill random processes
 * this can be accidentially or even maliciously used to kill processes
 * root casue is an off-by-one error

[Test Case]

 * as seen in the bug description above, but please note that this triggers the bug only sometimes (1/3 of my tries)
   ps xa | wc -l
   for i in `seq 1 65`; do touch ~/tmp_tasks/test$i; done;
   for i in `seq 1 65`; do echo ~/tmp_tasks/test$i; done | xargs killall
   ps xa | wc -l

[Regression Potential]

 * there should be no/minimal regression Potential
   - the fix itself is minimal
   - no solution (other than maybe exploits) should rely on this behaviour