code: protected final void bail(final ExitCode e) {
          if (e.isFailure()) {
              final StringBuilder bldr = new StringBuilder();
              bldr.append("\n");
              bldr.append(getApplicationShortName());
              bldr.append(" failed with error ");
              bldr.append(e);
              bldr.append(".");
              err.println(bldr.toString());
          }
  
          systemExit(e);
      }
docs: Invokes {@link #exit(ExitCode) exit} with the provided status code.
  
  @param e Exit code