t/t4202-log.sh: add newline at end of file

Some shells hang when parsing the script if the last statement is not
followed by a newline. So add one.
Signed-off-by: NBrandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

t/t4202-log.sh

@@ -72,3 +72,4 @@ test_expect_success 'diff-filter=D' '
 
 
 test_done
+