port new setting code to Sun C 5.8 2005/10/13

port new setting code to Sun C 5.8 2005/10/13

* chartab.c, lisp.h (char_table_set, char_table_set_range):
Return void, not Lisp_Object.  Otherwise, the compiler
complains about (A?B:C) where B is void and C is Lisp_Object
when compiling CHAR_TABLE_SET, due to the recent change to
the API of sub_char_table_set_contents.