i18n: apply: mark error message for translation

Update test to reflect changes.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

apply.c

@@ -1586,8 +1586,8 @@ static int find_header(struct apply_state *state,
 				patch->new_name = xstrdup(patch->def_name);
 			}
 			if (!patch->is_delete && !patch->new_name) {
-				error("git diff header lacks filename information "
-					     "(line %d)", state->linenr);
+				error(_("git diff header lacks filename information "
+					     "(line %d)"), state->linenr);
 				return -128;
 			}
 			patch->is_toplevel_relative = 1;

t/t4254-am-corrupt.sh

@@ -31,7 +31,7 @@ test_expect_success 'try to apply corrupted patch' '
 test_expect_success 'compare diagnostic; ensure file is still here' '
 	echo "error: git diff header lacks filename information (line 4)" >expected &&
 	test_path_is_file f &&
-	test_cmp expected actual
+	test_i18ncmp expected actual
 '
 
 test_done