Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
gcore -V (return code: 1)
Illegal process-id: --version.
You can't do that without a process to debug.
The program is not being run.
gcore: failed to create core.--version
gcore (return code: 2)
usage: gcore [-o filename] pid