Multiple 'die()' calls in show-index.c use literal strings directly.
Wrap all user-facing 'die()' messages with '_()' so they can be translated
via gettext, this ensures better support for users.
Signed-off-by: Shreyansh Paliwal <shreyanshpaliwalcmsmn@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>