hg: code-tools/jtreg: fix typo in comment

[jonathan.gibbons at oracle.com]

Changeset: a1ab78b388fe
Author:    jjg
Date:      2015-09-17 15:52 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/a1ab78b388fe

fix typo in comment

! src/share/classes/com/sun/javatest/regtest/JDK.java