PR: 5579 ;fail having uninitialized value trouble.

Which goes to show: if it aint tested, it doesnt work


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270370 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Exit.java

@@ -94,6 +94,9 @@ public class Exit extends Task {
      * Set a multiline message.
      */
     public void addText(String msg) {
+        if(message==null) {
+            message="";
+        }
         message += project.replaceProperties(msg);
     }