Replace use of deprecated C Standard library headers in C++ code.

Change-Id: I9fa6630c7e4bdb2897df34d417635d8c7d8253bc
Signed-off-by: Tyler Chatow <tchatow@gmail.com>
diff --git a/y2014/control_loops/shooter/shooter.cc b/y2014/control_loops/shooter/shooter.cc
index 52f900a..230a048 100644
--- a/y2014/control_loops/shooter/shooter.cc
+++ b/y2014/control_loops/shooter/shooter.cc
@@ -1,9 +1,8 @@
 #include "y2014/control_loops/shooter/shooter.h"
 
-#include <stdio.h>
-
 #include <algorithm>
 #include <chrono>
+#include <cstdio>
 #include <limits>
 
 #include "aos/logging/logging.h"