security: More slashes to colons

Change-Id: I181b060ef4b42e7900a25c94742cc5106091e650
diff --git a/go/src/v.io/x/sensorlog/internal/measure/watcher_test.go b/go/src/v.io/x/sensorlog/internal/measure/watcher_test.go
index b05c271..be9f3f8 100644
--- a/go/src/v.io/x/sensorlog/internal/measure/watcher_test.go
+++ b/go/src/v.io/x/sensorlog/internal/measure/watcher_test.go
@@ -28,7 +28,7 @@
 }
 
 func TestWatchForStreams(t *testing.T) {
-	_, ctxMeasured, sbName, _, cleanup := sbtu.SetupOrDieCustom("one", "one/sb", nil)
+	_, ctxMeasured, sbName, _, cleanup := sbtu.SetupOrDieCustom("one", "one:sb", nil)
 	defer cleanup()
 
 	// Open app/db (create both) as measured. Keep write permission on StreamDef.