RFR(T) 8250562: Clean up weird comment in vmTestbase class Terminator.java

[Harold Seigel]

Hi,

Please review this trivial change to fix JDK-8250562.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_8250562/webrev/index.html

JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8250562

Thanks, Harold