fix wrong condition for OPTION to ignore both 'Date' and 'Allow' headers

amend for : 91d7d30

Author: kares

src/main/java/org/jruby/rack/servlet/ResponseCapture.java

@@ -236,7 +236,7 @@ public boolean isHandled(final HttpServletRequest request) {
                 // Tomcat's DefaultServlet sets 'Allow' header but Jetty also sets the 'Date' header with its servlet
                 // ... if any other headers occur beside 'Allow' and 'Date' we consider this request handled
                 for ( final String headerName : headerNames ) {
-                    if ( ! "Allow".equals( headerName ) || ! "Date".equals( headerName ) ) {
+                    if ( ! "Allow".equals( headerName ) && ! "Date".equals( headerName ) ) {
                         return handled = true;
                     }
                 }