t1410: mark bufsize boundary test as REFFILES

This test fiddles with files under .git/logs to recreate a condition
that is unlikely to warrant special attention under reftable, as
reflog blocks are zlib compressed.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1410-reflog.sh

@@ -341,7 +341,7 @@ test_expect_success 'stale dirs do not cause d/f conflicts (reflogs off)' '
 # Each line is 114 characters, so we need 75 to still have a few before the
 # last 8K. The 89-character padding on the final entry lines up our
 # newline exactly.
-test_expect_success SHA1 'parsing reverse reflogs at BUFSIZ boundaries' '
+test_expect_success REFFILES,SHA1 'parsing reverse reflogs at BUFSIZ boundaries' '
 	git checkout -b reflogskip &&
 	zf=$(test_oid zero_2) &&
 	ident="abc <xyz> 0000000001 +0000" &&