diff-apply-hunk documentation doesn't match implementation

[Andreas Schwab]

The doc string of diff-apply-hunk says:

  By default, the new source file is patched, but if the variable
  `diff-jump-to-old-file' is non-nil, then the old source file is
  patched instead

But the implementation then goes on to do the opposite:

      ;; If REVERSE go to the new file, otherwise go to the old.
      (diff-find-source-location (not reverse) reverse)

IMHO the implementation should be changed to match documentation, since
the current behaviour is quite counter-intuitive.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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