(define-abbrev-table): Don't use `iff' in docstring.

diff --git a/lisp/abbrev.el b/lisp/abbrev.el
index 136dc2b9b9d3cc16508c8240642523794cc96b77..22c9ff40e3de1bc1b9ce930f3af510db5f838b1a 100644 (file)
--- a/lisp/abbrev.el
+++ b/lisp/abbrev.el
@@ -904,8 +904,8 @@ Properties with special meaning:
   means that an abbrev can only be a single word.  The submatch 1 is treated
   as the potential name of an abbrev.
 - `:enable-function' can be set to a function of no argument which returns
-  non-nil iff the abbrevs in this table should be used for this instance
-  of `expand-abbrev'."
+  non-nil if and only if the abbrevs in this table should be used for this
+  instance of `expand-abbrev'."
   ;; We used to manually add the docstring, but we also want to record this
   ;; location as the definition of the variable (in load-history), so we may
   ;; as well just use `defvar'.