Merge branch 'vm/lazy-loading' into vm/page-swap-synch

src/userprog/syscall.c

@@ -536,4 +536,4 @@ put_user (uint8_t *udst, uint8_t byte)
        : "=&a"(error_code), "=m"(*udst)
        : "q"(byte));
   return error_code != -1;
-}
+}