jobsub -a parses its value strictly (digits only, leading zeros ok):
1 submits an ordinary job; 2..32767 allocate with idgen_array, whose
result is checked; missing, non-digit and 0 values are refused with the
1-32767 range and values above 32767 with the limit, submitting nothing.
The success line and $jobid name the array identity; the random
sequence seed is bounded so the first array cannot overflow; help text
updated. Fixes bug-1896 for the harness.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>