cont.c: fix typedef
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47970 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
cont.c: fix typedef
[Feature #10341]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47970 b2dd03c8-39d4-4d8f-98ff-823fe69b080e