[Chapel Merge] Show sinfo output when it can't be parsed

Branch: refs/heads/main
Revision: c9c47c97346b9564b829da337765b8a2bcbcd7d9
Author: jhh67
Link: Show sinfo output when it can't be parsed by jhh67 · Pull Request #24841 · chapel-lang/chapel · GitHub
Log Message:
Show sinfo output when it can't be parsed (#24841)

If the slurm-srun launcher is unable to parse the output from sinfo,
print the output to help with debugging.

[Reviewed by @jabraham17, thank you.]

Compare: Comparing a84eca56a5c86d0728adc6bbf2cf797d099ffd90...c37d523d9cc66632fd9ad4d7785b5e4e353c6f32 · chapel-lang/chapel · GitHub

Diff:
M runtime/src/launch/slurm-srun/launch-slurm-srun.c
https://github.com/chapel-lang/chapel/pull/24841.diff