github.com/infobloxopen/protoc-gen-gorm fix to remove warning about embedded lock

plugin.go

index 21c5b4a..18ad64b 100644
--- a/plugin/plugin.go
+++ b/plugin/plugin.go
@@ -662,12 +662,12 @@ func (p *OrmPlugin) generateConvertFunctions(message *generator.Descriptor) {
        ///// To Pb
        p.P(`// ToPB runs the BeforeToPB hook if present, converts the fields of this`)
        p.P(`// object to PB format, runs the AfterToPB hook, then returns the PB object`)
-       p.P(`func (m *`, typeName, `ORM) ToPB (ctx context.Context) (`,
+       p.P(`func (m *`, typeName, `ORM) ToPB (ctx context.Context) (*`,
                typeName, `, error) {`)
-       p.P(`to := `, typeName, `{}`)
+       p.P(`to := &`, typeName, `{}`)
        p.P(`var err error`)
        p.P(`if prehook, ok := interface{}(m).(`, typeName, `WithBeforeToPB); ok {`)
-       p.P(`if err = prehook.BeforeToPB(ctx, &to); err != nil {`)
+       p.P(`if err = prehook.BeforeToPB(ctx, to); err != nil {`)
        p.P(`return to, err`)
        p.P(`}`)
        p.P(`}`)
@@ -680,7 +680,7 @@ func (p *OrmPlugin) generateConvertFunctions(message *generator.Descriptor) {
                p.generateFieldConversion(message, field, false, ofield)
        }
        p.P(`if posthook, ok := interface{}(m).(`, typeName, `WithAfterToPB); ok {`)
-       p.P(`err = posthook.AfterToPB(ctx, &to)`)
+       p.P(`err = posthook.AfterToPB(ctx, to)`)
        p.P(`}`)
        p.P(`return to, err`)
        p.P(`}`)