base64: removed trailing white space

and updated copyright year

lib/base64.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2013, 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
@@ -109,7 +109,7 @@ CURLcode Curl_base64_decode(const char *src,
     if(src[length+equalsTerm] == '=')
       equalsTerm++;
   }
-  
+
   /* Check the = padding characters weren't part way through the input */
   if(length + equalsTerm != srcLen)
     return CURLE_BAD_CONTENT_ENCODING;