master 7565dfd268: * lisp/subr.el (plistp): Simplify (bug#47427).

[Basil L. Contovounesios]

branch: master
commit 7565dfd268671c8d5388e8b9fe823367c206c131
Author: Basil L. Contovounesios <contovob@tcd.ie>
Commit: Basil L. Contovounesios <contovob@tcd.ie>

    * lisp/subr.el (plistp): Simplify (bug#47427).
---
 lisp/subr.el | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lisp/subr.el b/lisp/subr.el
index 69cff23cba..4e4eac32d9 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -4008,9 +4008,8 @@ Otherwise, return nil."
 
 (defun plistp (object)
   "Non-nil if and only if OBJECT is a valid plist."
-  (and (listp object)
-       (proper-list-p object)
-       (zerop (mod (length object) 2))))
+  (let ((len (proper-list-p object)))
+    (and len (zerop (% len 2)))))
 
 (defun macrop (object)
   "Non-nil if and only if OBJECT is a macro."