Regenerate all stuff.

server/auth/delegation/messages/delegation.pb.go

Index: server/auth/delegation/messages/delegation.pb.go
diff --git a/server/auth/delegation/messages/delegation.pb.go b/server/auth/delegation/messages/delegation.pb.go
index 8704ef4b4c858efe137be50365dde53aee1d0720..c7c698452c4ba2e14f2dba01e91092bd7b94ada0 100644
--- a/server/auth/delegation/messages/delegation.pb.go
+++ b/server/auth/delegation/messages/delegation.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/server/auth/delegation/messages/delegation.proto
-// DO NOT EDIT!
 
 /*
 Package messages is a generated protocol buffer package.
@@ -236,7 +235,7 @@ func init() {
 
 var fileDescriptor0 = []byte{
 	// 431 bytes of a gzipped FileDescriptorProto
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+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x4c, 0x92, 0x4d, 0x6f, 0xd3, 0x40,
 	0x10, 0x86, 0x71, 0x3e, 0x8a, 0x3b, 0x84, 0xe0, 0x2e, 0x87, 0x5a, 0xf4, 0x40, 0x14, 0x38, 0x44,
 	0xaa, 0x6a, 0x8b, 0xa2, 0x72, 0x2f, 0x8a, 0x05, 0xc6, 0xc8, 0x91, 0x9c, 0x20, 0x8e, 0x2b, 0xc7,
 	0x3b, 0x72, 0x46, 0x49, 0xec, 0xe2, 0x5d, 0x57, 0x0a, 0xff, 0x8b, 0xdf, 0xc6, 0x15, 0xed, 0xc6,