t5537: fix incorrect expectation in test case 10

Commit 48d25ca adds a new commit "7" to the repo that the next test case
in commit 1609488 clones from. But the next test case does not expect
this commit. For these tests, it's the bottom that's important, not
the top. Fix the expected commit list.

While at it, fix the default http port number to 5537. Otherwise when
t5536 learns to test httpd, running test in parallel may fail.

References:

48d25ca fetch: add --update-shallow to accept... - 2013-12-05
1609488 smart-http: support shallow fetch/clone - 2013-12-05

Noticed-by: Jeff King <peff@peff.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t5537-fetch-shallow.sh

@@ -178,7 +178,7 @@ if test -n "$NO_CURL" -o -z "$GIT_TEST_HTTPD"; then
 	test_done
 fi
 
-LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5536'}
+LIB_HTTPD_PORT=${LIB_HTTPD_PORT-'5537'}
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 
@@ -190,6 +190,7 @@ test_expect_success 'clone http repository' '
 	git fsck &&
 	git log --format=%s origin/master >actual &&
 	cat <<EOF >expect &&
+7
 6
 5
 4