make sure ZipFileSet works if the current working directory doesn't exist.

Submitted by:	David Rees <d.rees.l@usa.net>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268902 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/ZipFileSet.java

@@ -165,7 +165,7 @@ public class ZipFileSet extends FileSet {
         if (srcFile != null) {
             ZipScanner zs = new ZipScanner();
             zs.setSrc(srcFile);
-            super.setDir(new File("."));
+            super.setDir(p.getBaseDir());
             setupDirectoryScanner(zs, p);
             zs.init();
             return zs;