core: move comments with description of C file to top of files

src/plugins/plugin-script-api.c

@@ -1,4 +1,6 @@
 /*
+ * script-api.c - script API functions, used by script plugins
+ *
  * Copyright (C) 2003-2012 Sebastien Helleu <flashcode@flashtux.org>
  * Copyright (C) 2012 Simon Arlott
  *
@@ -18,10 +20,6 @@
  * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/*
- * script-api.c: script API functions, used by script plugins (perl/python/..)
- */
-
 #include <stdlib.h>
 #include <string.h>
 #include <stdarg.h>