string.c: fix wrong single-byte optimization
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by nobu (Nobuyoshi Nakada) over 11 years ago
string.c: fix wrong single-byte optimization
7bit ascii can be a trailing byte in Shift_JIS.
[ruby-dev:48442] [Bug #10078]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e