src/c-types-proto.lisp: Fix docstring.

diff --git a/src/c-types-proto.lisp b/src/c-types-proto.lisp
index b9b61bf..edadd64 100644 (file)
--- a/src/c-types-proto.lisp
+++ b/src/c-types-proto.lisp
@@ -253,7 +253,7 @@
    "Produce a `commentified' version of the argument.
 
    The default behaviour is that temporary argument names are simply omitted
-   (NIL is returned); otherwise, `/*...*/' markers are wrapped around the
+   (nil is returned); otherwise, `/*...*/' markers are wrapped around the
    printable representation of the argument.")
   (:method ((name null)) nil)
   (:method ((name t)) (format nil "/*~A*/" name)))