merge revision(s) 51470: [Backport #11413]
* re.c (rb_memsearch): should match only char boundaries in wide character encodings. [ruby-core:70220] [Bug #11413]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@51590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 51470: [Backport #11413]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@51590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e