- Update to version 84.87+git20210317.2c04190:
      * Don't rely on external dirname utility, but use ${d:h} tcsh expression.
      * Enable locking feature of tcsh history file handling
      * Add tcsh xd alias as well.
      * Add ash xd() function as well.
      * Add new function xd() "jump to the directory of a file"
    
    OBS-URL: https://build.opensuse.org/package/show/Base:System/aaa_base?expand=0&rev=719