Merge pull request #2636 from GorillaSapiens/issue_2607

issue #2607, enable '\e' character escape for --standard cc65

test/Makefile

@@ -25,6 +25,7 @@ continue:
 	@$(MAKE) -C ref all
 	@$(MAKE) -C err all
 	@$(MAKE) -C standard all
+	@$(MAKE) -C standard_err all
 	@$(MAKE) -C misc all
 	@$(MAKE) -C todo all
 	@$(MAKE) success_message
@@ -41,6 +42,7 @@ mostlyclean:
 	@$(MAKE) -C ref clean
 	@$(MAKE) -C err clean
 	@$(MAKE) -C standard clean
+	@$(MAKE) -C standard_err clean
 	@$(MAKE) -C misc clean
 	@$(MAKE) -C todo clean