Regenerate all stuff.

common/proto/config/project_config.pb.go

Index: common/proto/config/project_config.pb.go
diff --git a/common/proto/config/project_config.pb.go b/common/proto/config/project_config.pb.go
index e6b1e5a0a950ccbb44451c9519d433ff886370e4..5013892e076c1b5c7a8b3ee801d4f87ef05fd52c 100644
--- a/common/proto/config/project_config.pb.go
+++ b/common/proto/config/project_config.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/common/proto/config/project_config.proto
-// DO NOT EDIT!
 
 /*
 Package config is a generated protocol buffer package.
@@ -138,7 +137,7 @@ func init() {
 
 var fileDescriptor0 = []byte{
 	// 187 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x6c, 0x8d, 0xb1, 0xaa, 0xc3, 0x20,
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x8d, 0xb1, 0xaa, 0xc3, 0x20,
 	0x14, 0x86, 0xc9, 0x35, 0xe4, 0x92, 0x93, 0xcd, 0x0b, 0x17, 0xe9, 0xd2, 0x90, 0xa5, 0x59, 0x9a,
 	0x40, 0xa7, 0xd2, 0xa9, 0xd0, 0x17, 0x08, 0xbe, 0x40, 0xb0, 0xa2, 0x26, 0xa5, 0x6a, 0x88, 0xe6,
 	0xfd, 0x8b, 0x9a, 0xb1, 0x8b, 0x9e, 0xef, 0x7c, 0xe7, 0xe7, 0x87, 0xbb, 0x9a, 0xfd, 0xb4, 0x3d,