t/replace: quiet "git fsck" invocation

Test output can be a terminal if running as "perl -I lib t/$FOO.t",
and showing fsck progress is pointless for tests.

1 files changed, 3 insertions, 2 deletions

diff --git a/t/replace.t b/t/replace.t
index e9361856..57290f96 100644
--- a/t/replace.t
+++ b/t/replace.t
@@ -99,8 +99,9 @@ EOF
 
         for my $dir (glob("$ibx->{inboxdir}/git/*.git")) {
                 my ($bn) = ($dir =~ m!([^/]+)\z!);
-                is(system(qw(git --git-dir), $dir, qw(fsck --strict)), 0,
-                        "git fsck is clean in epoch $bn");
+                is(system(qw(git --git-dir), $dir,
+                                        qw(fsck --strict --no-progress)),
+                        0, "git fsck is clean in epoch $bn");
         }
 
         my $thread_b = $ibx->over->get_thread('replace@example.com');