infra: mirroring and policy hooks: Provide ((( ))) banners

When we invoke these, this makes their output easier to find in the
middle of the test suite debug scrool.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/lib-mirror b/tests/lib-mirror
index 8aa751a..25f0f90 100644
--- a/tests/lib-mirror
+++ b/tests/lib-mirror
@@ -22,7 +22,9 @@ t-mirror-set () {
 }
 
 t-mirror-hook () {
+	: '(((((((((((((((((((((((((((((((((((((((('
 	"$mirror_hook" "$drs_dispatch" "$@"
+	: '))))))))))))))))))))))))))))))))))))))))'
 }
 
 t-check-mirrored () {