Missing space in error message.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@801014 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -602,7 +602,7 @@ public class Delete extends MatchingTask {
                 throw new BuildException(
                         "File or Resource without directory or file specified");
             } else if (!fsDir.isDirectory()) {
-                handle("Directory does not exist:" + fsDir);
+                handle("Directory does not exist: " + fsDir);
             } else {
                 resourcesToDelete.add(fs);
                 DirectoryScanner ds = fs.getDirectoryScanner();