master 31a66dc8918 2/2: Fix portability problem in lisp/Makefile.in

[Po Lu]

branch: master
commit 31a66dc8918e81470dc35be7c489108fbbfbce01
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix portability problem in lisp/Makefile.in
    
    * lisp/Makefile.in (check-defun-dups): Avoid POSIX command
    substitutions.
---
 lisp/Makefile.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lisp/Makefile.in b/lisp/Makefile.in
index c90237615c6..fbe502cec6d 100644
--- a/lisp/Makefile.in
+++ b/lisp/Makefile.in
@@ -490,8 +490,8 @@ check-declare:
 ## This finds a lot of duplicates between foo.el and obsolete/foo.el.
 check-defun-dups:
        sed -n -e '/^(defun /s/\(.\)(.*/\1/p' \
-         $$(find . -name '*.el' ! -name '.*' -print | \
-         grep -Ev '(loaddefs|ldefs-boot)\.el|obsolete') | sort | uniq -d
+         `find . -name '*.el' ! -name '.*' -print | \
+         grep -Ev '(loaddefs|ldefs-boot)\.el|obsolete'` | sort | uniq -d
 
 # Dependencies