grep "In-Reply-To: <in-reply-id@example.com>"
'
+test_expect_success 'no in-reply-to and no threading' '
+ git send-email \
+ --dry-run \
+ --from="Example <nobody@example.com>" \
+ --to=nobody@example.com \
+ --nothread \
+ $patches $patches >stdout &&
+ ! grep "In-Reply-To: " stdout
+'
+
test_done