* compile.c (make_name_for_block): use PRIsVALUE in format string
  instead of %s and RSTRING_PTR to protect objects from being garbage
  collected too soon
* encoding.c (str_to_encindex): ditto
* hash.c (rb_hash_fetch_m): ditto
* io.c (rb_io_reopen): ditto
* parse.y (reg_fragment_check_gen): ditto
* parse.y (reg_compile_gen): ditto
* parse.y (ripper_assert_Qundef): ditto
* re.c (rb_reg_raise): ditto
* ruby.c (set_option_encoding_once): ditto
* vm_eval.c (rb_throw_obj): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e