[nongnu] elpa/geiser 5bfce52a63 2/2: Fix: don't use add-to-list on lexical variable

[ELPA Syncer]

branch: elpa/geiser
commit 5bfce52a63543b7e3955abfa64b2abac1e14d231
Author: jao <jao@gnu.org>
Commit: jao <jao@gnu.org>

    Fix: don't use add-to-list on lexical variable
    
    Thanks to Brian Leung
---
 elisp/geiser-repl.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/elisp/geiser-repl.el b/elisp/geiser-repl.el
index f1207bd1b1..0a1f544163 100644
--- a/elisp/geiser-repl.el
+++ b/elisp/geiser-repl.el
@@ -333,7 +333,8 @@ will be set up using `geiser-connect-local' when a REPL is 
started.")
   (let ((act))
     (dolist (repl geiser-repl--repls act)
       (with-current-buffer repl
-        (add-to-list 'act geiser-impl--implementation)))))
+        (unless (memq geiser-impl--implementation act)
+          (push geiser-impl--implementation act))))))
 
 (defsubst geiser-repl--repl-name (impl)
   (format "%s REPL" (geiser-impl--impl-str impl)))