make-snapshot: touch-unicode-files for 2.4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
make-snapshot: touch-unicode-files for 2.4
2.4, which has been introduced to reduce downloads on CI.
[ruby-core:81972] [Bug #13734]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e