Fix test cleanup.deletes_directory

A new version of sshd-core has been published with the message for a
missing directory changed. Maven uses the latest version and therefore
the test has to be adjusted to the changed message.

Author: stefanbirkner

pom.xml

@@ -9,7 +9,7 @@
     </parent>
 
     <artifactId>fake-sftp-server-rule</artifactId>
-    <version>1.3.1</version>
+    <version>1.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Fake SFTP Server Rule</name>

src/test/java/com/github/stefanbirkner/fakesftpserver/rule/FakeSftpServerRuleTest.java

@@ -878,7 +878,7 @@ private static void assertDirectoryDoesNotExist(
             try {
                 assertThatThrownBy(() -> channel.ls(directory))
                     .isInstanceOf(SftpException.class)
-                    .hasMessage("Internal FileNotFoundException: " + directory);
+                    .hasMessage("No such file or directory");
             } finally {
                 channel.disconnect();
                 session.disconnect();