Unescape \= in signature docstring

`helpful--signature': unquote \=, as added by `help--quote-signature'.

An example where this is needed is `\(setf\ seq-first\)'.

1 files changed, 2 insertions, 1 deletions

diff --git a/helpful.el b/helpful.el
index c1b5550..8710e1c 100644
--- a/helpful.el
+++ b/helpful.el
@@ -2556,7 +2556,8 @@ For example, \"(some-func FOO &optional BAR)\"."
       source-sig)
      ;; If that's not set, use the usage specification in the
      ;; docstring, if present.
-     (docstring-sig)
+     (docstring-sig
+      (replace-regexp-in-string "\\\\=\\(['\\`‘’]\\)" "\\1" docstring-sig t))
      (t
       ;; Otherwise, just use the signature from the source code.
       source-sig))))