tests: teach the test-tool to generate NUL bytes and use it

diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh
index ae79c6bbc0d66e9a7a184b2d1726a316a0affbbe..fe45bf828d09cd9d95a66742ef938837d35141a3 100755 (executable)
--- a/t/t5701-git-serve.sh
+++ b/t/t5701-git-serve.sh
@@ -14,7 +14,7 @@ test_expect_success 'test capability advertisement' '
        0000
        EOF
 
-       git serve --advertise-capabilities >out &&
+       GIT_TEST_SIDEBAND_ALL=0 git serve --advertise-capabilities >out &&
        test-tool pkt-line unpack <out >actual &&
        test_cmp expect actual
 '