cperl-mode: fix doc string escaping

* lisp/progmodes/cperl-mode.el (cperl--extra-paired-delimiters):
Fix broken escaping.

(cherry picked from commit 087b842eedbaff3990cb6f80786934f4c5220d63)

diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el
index 18af10cb8078f8cabaa078404ca5580bfc066201..1544dcd8a1969e01e909b0eca0ca98a7c207886f 100644 (file)
--- a/lisp/progmodes/cperl-mode.el
+++ b/lisp/progmodes/cperl-mode.el
@@ -3683,7 +3683,7 @@ fontified.  Do nothing if BEGIN and END are equal.  If
                                          ( ?\N{U+1F8AB} . ?\N{U+1F8AA} ))
   "Full list of paired delimiters for quote-like constructs.
 As an experimental feature, Perl uses these under \"feature
-\='extra_paired_delimiters\='\" or in feature bundles of Perl 5.40 or
+\\='extra_paired_delimiters\\='\" or in feature bundles of Perl 5.40 or
 newer.  To activate the extra delimiters, switch on the minor mode
 `cperl-extra-paired-delimiters-mode'.  This is also available from the
 \"Perl\" menu in section \"Toggle...\".