Fixed a typo

rules.mk

@@ -61,11 +61,12 @@ $(RELEASE_DIRECTORY)/$(notdir $(EXE)): $(EXE)
 	@cp -u "$^" "$@"
 
 release: $(EXE) $(RELEASE_FILES) $(RELEASE_MISC_FILES) $(RELEASE_DIRECTORY)/$(notdir $(EXE))
+	@echo "[Release]"
 
 bundle: release
+	@echo "[Bundling]"
 	@echo "Tar-zipping"
-	@OLDPWD=$(PWD)
-	@cd release; tar cfz "$(PLATFORM).tar.gz" $(PLATFORM);
+	@tar cfz "$(RELEASE_DIRECTORY).tar.gz" $(wildcard $(RELEASE_DIRECTORY)/*)
 	@echo "Archive ready at $(RELEASE_DIRECTORY).tar.gz"
 
 format: