errors: improve the advice to send hwloc-gather-topology files in the OS error message

(cherry picked from commit f77aa01b3c23181107162ac2c8f6155c62d7c798)
NEWS update
update-my-copyright.pl: bring updated version from Open MPI

Adds better git support, --check-only optio for pre-commit hook, etc.

Does not support a commit id argument on the command-line,
but pre-commit hooks solve this need.

(cherry picked from commit 4f9ea6cdb8512c12dce3b6944149c6c4e07e8682)