fix: pdcfg cmd matching

tools/pdcfg/main.go

@@ -36,7 +36,8 @@ func main() {
 			fmt.Println("wrong command.")
 			continue
 		}
-		cmd := fragments[0]
+
+		cmd := strings.TrimSpace(fragments[0])
 		handler, err := cmdHandler.GetHandler(cmd)
 		if err != nil {
 			fmt.Printf("Error: %v \n", err)