hg: jdk/sandbox: 8193819: Error message when module does not have a ModuleMainClass attribute is confusing

[chris.hegarty at oracle.com]

Changeset: dfa46cfe5634
Author:    alanb
Date:      2018-02-15 14:44 +0000
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/dfa46cfe5634

8193819: Error message when module does not have a ModuleMainClass attribute is confusing
Reviewed-by: sundar

! src/java.base/share/classes/sun/launcher/resources/launcher.properties