MFC r230520:

MFC r230520:

Clean up reinstall option and remove duplicate code

- Move the reinstall logic to be before menus are initialised
  (menus are not needed when reinstalling a zonefile).

- Remove unnecessary re-initialization of path_db.

- Update variable name and error message because we now use the
  zone name relative to /usr/share/zoneinfo, not the full path.

pr:		bin/164041
Submitted by:	dteske

git-svn-id: svn://svn.freebsd.org/base/stable/8@247749 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f