-use isClosed instead of isEOF, bugzilla #43092

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@575511 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/ssh/SSHExec.java

@@ -187,7 +187,7 @@ public class SSHExec extends SSHBase {
             thread =
                 new Thread() {
                     public void run() {
-                        while (!channel.isEOF()) {
+                        while (!channel.isClosed()) {
                             if (thread == null) {
                                 return;
                             }