Use rb_isspace for ASCII-incompatible strings.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Use rb_isspace for ASCII-incompatible strings.
may be ASCII-incompatible.
(rb_str_lstrip_bang): ditto.
(rb_str_rstrip_bang): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e