hg: jdk7/tl/langtools: 6893943: exit code from javah with no args is 0

[jonathan.gibbons at sun.com]

Changeset: af75fd6155de
Author:    jjg
Date:      2010-02-25 13:32 -0800
URL:       http://hg.openjdk.java.net/jdk7/tl/langtools/rev/af75fd6155de

6893943: exit code from javah with no args is 0
Reviewed-by: darcy

! src/share/classes/com/sun/tools/javah/JavahTask.java
+ test/tools/javah/T6893943.java