RFR: 8088718 : Printing of LinearGradient fails

[Phil Race]

https://bugs.openjdk.java.net/browse/JDK-8088718

diff is in the bug report but it looks like this :-

- if (x1 == x2 && y1 == y1) {
+ if (x1 == x2 && y1 == y2) {

-phil.