RFR: JDK-8205493: OptionSmokeTest.java uses hard-coded release values

[Vicente Romero]

Hi all,

Please review the patch to fix [1] at [2]. The fix is basically removing 
the use of hard-coded source/release values from the test making it 
easier to maintain in the future,

Thanks,
Vicente

[1] https://bugs.openjdk.java.net/browse/JDK-8205493
[2] http://cr.openjdk.java.net/~vromero/8205493/webrev.00/jdk.dev.patch