[MacPorts] #61310: notmuch @0.31 +emacs: variable rsti_dir is empty

[MacPorts]

#61310: notmuch @0.31 +emacs: variable rsti_dir is empty
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  Reporter:  lafpark  |      Owner:  rseichter
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.3
Resolution:           |   Keywords:
      Port:  notmuch  |
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Comment (by lafpark):

 I need to provide -e to verify existence.
 {{{
 ➜  ~ realpath -e does_not_exist
 realpath: does_not_exist: No such file or directory
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61310#comment:13>
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