Fix missed Makefile

Author: TGWDB

regression/goto-cc-multi-file/Makefile

@@ -26,6 +26,6 @@ show:
 	done;
 
 clean:
-        find . -name '*.out' -execdir $(RM) '{}' \;
-        find . -name '*.gb' -execdir $(RM) '{}' \;
-        find . -name '*.log' -execdir $(RM) '{}' \;	@for dir in *; do \
+	find . -name '*.out' -execdir $(RM) '{}' \;
+	find . -name '*.gb' -execdir $(RM) '{}' \;
+	find . -name '*.log' -execdir $(RM) '{}' \;