Fix: ssh delete-project command is inconsistent with WebUI

When deleting a project with children projects or a project subscribed
by other projects using ssh commands, the deletion failed but no error
message showed up. This was different from WebUI which returned the
error message in the same situation.

This bug was fixed by throwing the unloggedFailure object returned by
the die method. The error messages now appear on the command line when
using ssh commands to delete parent projects or projects with
submodules subscribed to them.

Change-Id: I6418ecb94391448e55c0e11c59d402fcc198381a
diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteCommand.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteCommand.java
index e62634a..f7124e4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteCommand.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/DeleteCommand.java
@@ -98,7 +98,7 @@
         | ResourceConflictException
         | OrmException
         | IOException e) {
-      die(e);
+      throw die(e);
     }
   }
 }