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/frc971/wpilib/spi_rx_clearer.h b/frc971/wpilib/spi_rx_clearer.h
index 17936ab..e385d21 100644
--- a/frc971/wpilib/spi_rx_clearer.h
+++ b/frc971/wpilib/spi_rx_clearer.h
@@ -1,7 +1,7 @@
 #ifndef FRC971_WPILIB_SPI_RX_CLEARER_H_
 #define FRC971_WPILIB_SPI_RX_CLEARER_H_
 
-#include <stdint.h>
+#include <cstdint>
 
 namespace frc971 {
 namespace wpilib {
@@ -38,4 +38,4 @@
 }  // namespace wpilib
 }  // namespace frc971
 
-#endif // FRC971_WPILIB_SPI_RX_CLEARER_H_
+#endif  // FRC971_WPILIB_SPI_RX_CLEARER_H_