Pass the ManifestException to BuildException

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271891 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -548,7 +548,7 @@ public class Manifest extends Task {
             }
         }
         catch (ManifestException e) {
-            throw new BuildException("Default manifest is invalid !!");
+            throw new BuildException("Default manifest is invalid !!", e);
         }
         catch (IOException e) {
             throw new BuildException("Unable to read default manifest", e);