My setup is extremely convoluted, I fear, so I will not submit this as a
bug report.

When I type <return> at a link to an org-mode link (it is in another file),
the following is seen in the minibuffer:

    Running less <path/filename>...done

I updated org-mode from git, and reset org-return-follows-path by
customization, and this situation persists.

Can anyone suggest where to look?

Thank you,

Alan Davis