Use --rm for shellcheck

Author: Jason Mobarak

Makefile

@@ -12,10 +12,10 @@ cpp_wrapper: cpp_wrapper.c
 	gcc -O3 -std=c99 -Wall cpp_wrapper.c -o cpp_wrapper
 
 check:
-	docker run -v $(CURDIR):/mnt koalaman/shellcheck -x $(SCRIPTS)
+	docker run --rm -v $(CURDIR):/mnt koalaman/shellcheck -x $(SCRIPTS)
 
 check-%:
-	docker run -v $(CURDIR):/mnt koalaman/shellcheck -x $*.bash
+	docker run --rm -v $(CURDIR):/mnt koalaman/shellcheck -x $*.bash
 
 ifeq ($(NO_TTY),y)
 NO_TTY_ARG := --no-tty