hg: jigsaw/stage: Clarify leading comment in modules.xml

[mark . reinhold]

Changeset: a2a749182a39
Author:    mr
Date:      2014-08-12 16:35 -0700
URL:       http://hg.openjdk.java.net/jigsaw/stage/rev/a2a749182a39

Clarify leading comment in modules.xml

! modules.xml