* ext/fiddle/fiddle.c: fix typo in fiddle doc [Bug #8412]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40916 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/fiddle/fiddle.c

@@ -144,7 +144,7 @@ Init_fiddle(void)
      *
      * It wraps {libffi}[http://sourceware.org/libffi/], a popular C library
      * which provides a portable interface that allows code written in one
-     * language to clal code written in another language.
+     * language to call code written in another language.
      *
      * == Example
      *