Ruby » Ruby master

• string.c (tr_trans): when the hash for multibyte repl is empty,
  tr is inverse mode, and a character doesn't much the table, the
  character should be replaced by last replacement. Bug #4449

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30977 b2dd03c8-39d4-4d8f-98ff-823fe69b080e