package/zbar: bump to version 0.23.1

- Add new NLS dependency as well as a patch to fix a build failure
  without it
- Drop host-gettext (not needed since autoreconf was dropped with
  8729c4ef881b02ff85b7645b0ad309d6ae44fccf)
- Update indentation in hash file (two spaces)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
3 files changed