Missing `org-attach-set-inherit' function

[stardiviner]

I found the function ~org-attach-set-inherit~ is missing. I noticed it in the 
Info
document.

#+begin_quote
     ‘i’ (‘org-attach-set-inherit’)
          Set the ‘ATTACH_DIR_INHERIT’ property, so that children use
          the same directory for attachments as the parent does.
#+end_quote

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[ stardiviner ]
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