Restore the removed change-log entries

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
string.c: remove old interfaces

* string.c (rb_str_new[2-5], rb_{tainted,usascii}_str_new2),
  (rb_str_buf_new2): remove old interfaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41016 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
error.c: better names for rb_exc_new family

* error.c (rb_exc_new_cstr): rename from rb_exc_new2.
* error.c (rb_exc_new_str): rename from rb_exc_new3.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41017 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
remove duplicated entry

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41018 b2dd03c8-39d4-4d8f-98ff-823fe69b080e