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-rw-r--r--lisp/abbrev.el1
1 files changed, 1 insertions, 0 deletions
diff --git a/lisp/abbrev.el b/lisp/abbrev.el
index 5b4ffe3ae8f..9092be584f4 100644
--- a/lisp/abbrev.el
+++ b/lisp/abbrev.el
@@ -522,6 +522,7 @@ the current abbrev table before abbrev lookup happens."
(setplist newsym (symbol-plist sym)))
(abbrev-table-put table :abbrev-table-modiff
(1+ (abbrev-table-get table :abbrev-table-modiff))))
+ ;; For backward compatibility, always return nil.
nil)
(defun define-abbrev (table name expansion &optional hook &rest props)