Replace `iff' in doc-strings and comments.

1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/progmodes/cc-engine.el b/lisp/progmodes/cc-engine.el
index 44463a07f1..97dcc61460 100644
--- a/lisp/progmodes/cc-engine.el
+++ b/lisp/progmodes/cc-engine.el
@@ -5116,7 +5116,7 @@ comment at the start of cc-engine.el for more info."
   ;;     Foo::Foo (int b) : Base (b) {}
   ;; car ^                ^ point
   ;;
-  ;;   The cdr of the return value is non-nil iff a
+  ;;   The cdr of the return value is non-nil if a
   ;;   `c-typedef-decl-kwds' specifier is found in the declaration,
   ;;   i.e. the declared identifier(s) are types.
   ;;