[lemon] Use void* as generic pointer instead of char*.

Action_add() takes a char* as last parameter, which leads clang to emit
warnings about incompatible pointer types:
  lemon.c:838:34: […] 'struct state *' to parameter of type 'char *'
  lemon.c:939:57: […] 'struct rule *' to parameter of type 'char *'

Signed-off-by: Cyril Brulebois <kibi@debian.org>

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2846 152afb58-edef-0310-8abb-c4023f1b3aa9

src/lemon.c

@@ -404,7 +404,7 @@ void Action_add(app,type,sp,arg)
 struct action **app;
 enum e_action type;
 struct symbol *sp;
-char *arg;
+void *arg;
 {
   struct action *new;
   new = Action_new();