Regenerate all stuff.

scheduler/appengine/messages/cron.pb.go

Index: scheduler/appengine/messages/cron.pb.go
diff --git a/scheduler/appengine/messages/cron.pb.go b/scheduler/appengine/messages/cron.pb.go
index 95af22d6dd4a7c142a6ce533dc035e0cc769dff6..2e4406a80f6ea995f5a4a5c333eda3422838ca39 100644
--- a/scheduler/appengine/messages/cron.pb.go
+++ b/scheduler/appengine/messages/cron.pb.go
@@ -1,6 +1,5 @@
-// Code generated by protoc-gen-go.
+// Code generated by protoc-gen-go. DO NOT EDIT.
 // source: github.com/luci/luci-go/scheduler/appengine/messages/cron.proto
-// DO NOT EDIT!
 
 /*
 Package messages is a generated protocol buffer package.
@@ -569,7 +568,7 @@ func init() {
 
 var fileDescriptor0 = []byte{
 	// 780 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xac, 0x55, 0x4b, 0x6f, 0xf3, 0x44,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xac, 0x55, 0x4b, 0x6f, 0xf3, 0x44,
 	0x14, 0x95, 0xf3, 0xce, 0x75, 0xd2, 0xb4, 0x23, 0x88, 0x86, 0x0a, 0x68, 0xe4, 0x45, 0x89, 0x78,
 	0x24, 0x52, 0x0a, 0x12, 0x52, 0x17, 0x08, 0x28, 0x20, 0xba, 0x40, 0x95, 0x5b, 0x84, 0x58, 0x20,
 	0xcb, 0x8f, 0x6b, 0x67, 0x5a, 0xdb, 0x63, 0xcd, 0x8c, 0x4b, 0xd9, 0xb3, 0xe7, 0x7f, 0xf4, 0x9f,