doc improvement.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15162 71c3de6d-444a-0410-be80-ed276b4c234a

test/src/main/java/org/jvnet/hudson/test/WarExploder.java

@@ -34,6 +34,10 @@ import java.net.URL;
 /**
  * Ensures that <tt>hudson.war</tt> is exploded.
  *
+ * <p>
+ * Depending on where the test is run (for example, inside Maven vs IDE), this code attempts to
+ * use hudson.war from the right place, thereby improving the productivity.
+ *
  * @author Kohsuke Kawaguchi
  */
 final class WarExploder {