TBR veyron/services/identity/identityd: increase sleep time

Change-Id: Ie4fe66cae2c9d70b5d32f40b7ca785206bf7cccd
diff --git a/services/identity/identityd/identityd_v23_test.go b/services/identity/identityd/identityd_v23_test.go
index a158344..c88f7fe 100644
--- a/services/identity/identityd/identityd_v23_test.go
+++ b/services/identity/identityd/identityd_v23_test.go
@@ -27,7 +27,9 @@
 	inv := principal.Start(args...)
 	// Reproduce the sleep that was present in the shell test to see if
 	// this allows the test to pass on macjenkins.
-	time.Sleep(2 * time.Second)
+	// TODO(sjr): I suspect the failure is caused by race conditions
+	// exacerbated by our new binary caching.
+	time.Sleep(10 * time.Second)
 	line := inv.ExpectSetEventuallyRE(urlRE)[0][1]
 	// Scan the output of "principal seekblessings", looking for the
 	// URL that can be used to retrieve the blessings.