t3434: mark successful test as such

t3434.3 was fixed by commit 917d0d6 ("Merge branch
'js/rebase-r-safer-label'", 2019-12-05).  t3434 did not exist in
js/rebase-r-safer-label, so could not have marked the test as fixed, and
it was probably not noticed that the merge fixed this test.  Mark it as
fixed now.

Signed-off-by: Elijah Newren <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: newren

t/t3434-rebase-i18n.sh

@@ -45,7 +45,7 @@ test_expect_success 'rebase --rebase-merges update encoding eucJP to UTF-8' '
 	compare_msg eucJP.txt eucJP UTF-8
 '
 
-test_expect_failure 'rebase --rebase-merges update encoding eucJP to ISO-2022-JP' '
+test_expect_success 'rebase --rebase-merges update encoding eucJP to ISO-2022-JP' '
 	git switch -c merge-eucJP-ISO-2022-JP first &&
 	git config i18n.commitencoding eucJP &&
 	git merge -F "$TEST_DIRECTORY/t3434/eucJP.txt" second &&