cont.c: wrong _MSC_VER check
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54574 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
cont.c: wrong _MSC_VER check
_MSC_VER check, should be decimal but not hexadecimal.
[ruby-core:74936] [Bug #12279]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54574 b2dd03c8-39d4-4d8f-98ff-823fe69b080e