hg: jdk/sandbox: 8210275: Source Launcher should fail if --source is used without a source file

[chris.hegarty at oracle.com]

Changeset: f191aca8f96d
Author:    jjg
Date:      2018-09-21 15:38 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/f191aca8f96d

8210275: Source Launcher should fail if --source is used without a source file
Reviewed-by: mchung, alanb, mcimadamore

! src/java.base/share/native/libjli/java.c
! src/jdk.compiler/share/classes/com/sun/tools/javac/resources/launcher.properties
! test/jdk/tools/launcher/SourceMode.java
! test/langtools/tools/javac/launcher/SourceLauncherTest.java