hg: jigsaw/jake/jdk: fix formatting nit

[mandy . chung]

Changeset: e0558b224fdf
Author:    mchung
Date:      2016-12-14 16:44 -0800
URL:       http://hg.openjdk.java.net/jigsaw/jake/jdk/rev/e0558b224fdf

fix formatting nit

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src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/SystemModulesPlugin.java