win32/configure.bat: fix eol-style


* win32/configure.bat: reset svn:eol-style to CRLF, and revert
  r47015.  r47017 just reverted the contents but did not reset it.
  `svn export` converts CRLF to LF due to this property.
  [ruby-core:64414] [Bug #10145]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47205 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-08-17

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47206 b2dd03c8-39d4-4d8f-98ff-823fe69b080e