bug#72097: 30.0.60; [PATCH] Don't add to Eshell history when aborting 'eshell-command'

[Jim Porter]

Steps to reproduce:

  emacs -Q
  M-x eshell-command RET oops C-g
  M-x eshell
  <up>

This will show the most-recent command in the Eshell history as "oops". 
That's because it was adding to the history in 'minibuffer-exit-hook', 
which runs regardless of *how* you exit the minibuffer. This regressed 
from 093a360251, and I misunderstood the conditions where 
'minibuffer-exit-hook' runs.

Attached is a patch to fix this. Is this ok for the release branch?

0001-Don-t-save-to-history-from-eshell-command-when-abort.patch
Description: Text document