update gen.go to dump files being read for yul binding generation

solgen/gen.go

@@ -118,7 +118,7 @@ func main() {
 		_, file := filepath.Split(path)
 		name := file[:len(file)-5]
 
-		log.Print("reading", path, "for contract", name)
+		log.Printf("Processing %s", name)
 		data, err := os.ReadFile(path)
 		if err != nil {
 			log.Fatal("could not read", path, "for contract", name, err)