fix: comments and correct protoc options for the version

golang/cosmos/scripts/protocgen.sh

@@ -4,12 +4,15 @@ set -eo pipefail
 
 proto_dirs=$(find . -path ./third_party -prune -o -name '*.proto' -print0 | xargs -0 -n1 dirname | sort | uniq)
 for dir in $proto_dirs; do
+  # NOTE: when migrating to grpc-gateway v2, we will need to remove the
+  # allow_colon_final_segments=true
+  # as per https://grpc-ecosystem.github.io/grpc-gateway/docs/development/grpc-gateway_v2_migration_guide/#withlastmatchwins-and-allow_colon_final_segmentstrue-is-now-default-behaviour
   protoc \
   -I proto \
   -I third_party/proto \
   --gocosmos_out=plugins=interfacetype+grpc,\
 Mgoogle/protobuf/any.proto=github.com/cosmos/cosmos-sdk/codec/types:. \
-  --grpc-gateway_out=logtostderr=true:. \
+  --grpc-gateway_out=logtostderr=true,allow_colon_final_segments=true:. \
   $(find "${dir}" -maxdepth 1 -name '*.proto')
 done
 

golang/cosmos/third_party/proto/google/protobuf/any.proto

@@ -35,7 +35,7 @@ package google.protobuf;
 import "gogoproto/gogo.proto";
 
 option csharp_namespace = "Google.Protobuf.WellKnownTypes";
-option go_package = "github.com/cosmos/cosmos-sdk/codec/types";
+option go_package = "github.com/golang/protobuf/ptypes/any";
 option java_package = "com.google.protobuf";
 option java_outer_classname = "AnyProto";
 option java_multiple_files = true;

golang/cosmos/tools/tools.go

@@ -1,4 +1,6 @@
 // +build tools
+//
+// This file exists only to make references to tool modules we need.
 
 package tools