master 3ce629634a 2/3: Silence rmailsum byte compiler warnings

[Robert Pluim]

branch: master
commit 3ce629634a2c5e11690abbc5d1a9fc4811e459c3
Author: Robert Pluim <rpluim@gmail.com>
Commit: Robert Pluim <rpluim@gmail.com>

    Silence rmailsum byte compiler warnings
    
    * lisp/mail/rmailsum.el (rmail-summary-by-thread): Prefix unused
    lambda args with '_'.
---
 lisp/mail/rmailsum.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/mail/rmailsum.el b/lisp/mail/rmailsum.el
index 08c544bc99..b30c32aaff 100644
--- a/lisp/mail/rmailsum.el
+++ b/lisp/mail/rmailsum.el
@@ -437,10 +437,11 @@ headers of the messages."
                         (list 'rmail-summary-by-thread msgnum)
                         (if (and rmail-summary-progressively-narrow
                                  (rmail-summary--exists-1))
-                            (lambda (msg msgnum)
+                            (lambda (msg _msgnum)
                               (and (aref 
rmail-summary-currently-displayed-msgs msg)
                                    (aref enc-msgs msg)))
-                          (lambda (msg msgnum) (aref enc-msgs msg)))
+                          (lambda (msg _msgnum)
+                             (aref enc-msgs msg)))
                         msgnum))))
 
 ;;;###autoload