https.c example: spell check used define

Bug: http://curl.haxx.se/bug/view.cgi?id=3559845
Reported by: Olivier Berger

docs/examples/https.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -45,7 +45,7 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
 #endif
 
-#ifdef SKIP_HOSTNAME_VERFICATION
+#ifdef SKIP_HOSTNAME_VERIFICATION
     /*
      * If the site you're connecting to uses a different host name that what
      * they have mentioned in their server certificate's commonName (or